Connecting dsl 2640u to cable internet. Restoring factory settings
No one will argue that wireless WiFi network- it’s convenient, fast and very modern. Today such networks operate in various cafes and other public places. There they rarely have a password, because WiFi is available to everyone.
But setting a password for your home wireless network is not only possible, but absolutely necessary! After all, only in this case can you be sure that only you can use your network. As an example, let's try to set a password on the WiFi D-link DSL-2640U.
Set a password for WiFi
To set a password on the WiFi D-link DSL-2640U, you must first find out what IP address it has on the local network. For this:
- You need to press the Win+R key combination on your keyboard (or go to “Start” -> “Run”) and in the command line that opens, write the cmd command, then press the Enter key.
- A dialog box will open in front of you with command line, into which you should enter the following command: tracert ya.ru
- In response to this command, another one will open information window, in which we will be interested in the first line. In it, in addition to different letters, the IP address will be written, which may look like this: 192.168.0.1. This will be the address of your WiFi router.
After the IP address is obtained, you should go to any browser installed on your computer (experts recommend using either Internet Explorer, or Firefox) and enter this IP in the address bar, then press “Enter” (in our example this is: 192.168.0.1).
After this (if everything is done correctly), the authorization page will open, which will prompt you to enter a username and password. As a rule, they are the same - admin and admin (if it won’t let you in, then you need to clarify the login and password in the instructions that come with the kit. By the way, it also indicates the standard local IP address router).
If everything is done correctly, then after this you will be able to enter the router settings to set a password in them:
- You need to find the Wireless window in the left menu that appears, click on it and in the next dialog box that opens, look for the Network Authentication tab.
- Since the password has not been set before, “open” will be written next to it. You should select WPA or WPA2 and then set a password.
Connection to the Internet is carried out using various technologies and protocols. One of the first was a telephone line, which remains relevant to this day. The technology using this type of communication is called ADSL2+. Currently, it is being replaced by more convenient and faster options, but in remote settlements it is still one of the main methods for wired connection to the World Wide Web. Let's take a closer look at the 2640U DSL router, which provides wireless connection to the Internet.
The 2640U router is used only for ADSL connections.
There are four variations of this model available for purchase. Outwardly they are indistinguishable, the difference lies only in the options for hardware revisions. The DSL connection method is already outdated, but still relevant for remote villages.
It also has a connection function wireless network. That is, it is used as a Wi-Fi device. The characteristics of the d-link 2640u dsl router are identical to other models from the xDSL segment.
The 2640U router interface does not contain USB connectors, which means there is no way to connect a 3G/4G modem to it or flash the firmware via a flash drive. It also does not support creating a VPN server, or using it as a torrent or DLNA server. It is not possible to make an individual configuration or change the assignment of buttons on the equipment.
Appearance
DSL wi fi modem d-link 2640u is a black box with rounded edges. On the front side there are light indicators with a signature that indicate the operation of the current connection. The power connector and ports are on back side along with a single antenna.
The design is the same as most routers from the manufacturer.
The DSL equipment comes with all the necessary cables for installation. network device. Basic documentation and a configuration assistant are included on the included CD.
Connection and preparation for work
Before you set up d-link router 2640u, you need to connect it to electrical network. To do this, use the power adapter included in the kit. Connector telephone cable insert into a special device - splitter. It will allow you to divide the signal coming from the wire into two: the first is responsible for the telephone, and the second is for providing access to the Internet. The last stage connection in progress network cable 2640u to network port on the computer.
Settings
There are two ways to configure a network device. Using the installation wizard from disk or through a browser in the router menu. Let's consider each of the options in more detail.
To set up dsl wireless router 2640u automatic mode, you must first run the “Installation Wizard”, which is included on the disk with the delivery kit. Next, you will need to select the country and organization that provides access services to the “global network”.
In the next step, you will need to specify the login and password provided by the provider when concluding the contract.
After this, the router will automatically perform the necessary actions.
Connecting to the Internet manually using the example of some providers
If the first option does not help, or the user prefers to perform the configuration independently, you must log in to the 2640U through a browser.
Now let's look at how to configure a dsl d-link 2640u router depending on the selected provider.
"Home ru"
Officially, Dom.ru does not support DSL routers, as they use outdated Internet connection technology. But the following instructions apply.
Set the Connection Type to PPPoE. Interface, or connection port, DSL (New). Name – enter any value. This is simply the name of the DSL connection being created.
Section "ATM":
The meaning of the VPI and VCI fields responsible for the connection via the DSL line must be obtained from the provider. They are individual depending on the region of residence and the port on the service provider’s equipment. Leave the remaining fields unchanged. 
Section "PPP":
In the “Username” and “Password” fields, enter the data provided by the provider for the DSL connection service. Other parameters remain unchanged. 
To use the IPTV function, you must check the “Enable IGMP Multicast” checkbox. 
Click the “Apply” button. IN top menu select “System”, “Save and Reboot” item: 
This completes the initial Internet configuration on the d-link 2640u.
Rostelecom
The service provider officially supports this model. Settings dsl router d-link 2640u from the Rostelecom provider is identical to the above method. This is because both providers use the same Internet setup procedure.
"Beeline"
For the wifi dsl router d-link 2640u, connecting to the Internet through the Beeline provider is impossible, since it is not directly capable of supporting a connection through the provider’s VPN servers.
To use it, you must purchase a second network device that can support this function. It is also recommended to immediately select a model through which it is possible to configure optics for the dsl wireless home router d link 2640u.
NetByNet
Adsl wifi router d-link 2640u is not supported by NetByNet as a router for providing access to the World Wide Web. Before configuring the dsl d-link 2640u router according to the instructions, it is recommended that you first contact your provider for advice. This is due to the fact that NetByNet necessarily uses identification by the MAC address of the network equipment.
Wireless network
SSID: come up with a name for the wi-fi network. Country: indicate the country where the user is located. Channel: leave Auto mode.
Enabling the Hide Access Point feature means that the connection is invisible when you try to find it in general search. To connect to a Wi-Fi network on the device, you will need to manually enter the name of the access point and specify the password for it.
Leave the remaining parameters without adjustment. Click the “Apply” button to save the changes.
Network authentication is an encryption algorithm used to secure a wireless connection. It is recommended to set the value to WPA-PSK/WPA2-PSK. These are the latest standards that cannot be hacked. In the “Encryption key” field, create a password to access Wi-Fi. The rules for creating it are indicated above, when the process of changing the password for the 2640u network device was described. "WPA encryption": set TKIP+AES for reliable protection access points. Leave the remaining fields unchanged.
- Click the “Apply” button to save the configuration. Next, you will need to reboot the DSL router to apply all the changes made.
The above method will work on a 2640u router without much difficulty for the user.
Configuration in repeater (repeater), amplifier, adapter or access point mode
The 2640U router is configured in different modes: Bridge mode, access point, repeater or Wi-Fi signal booster. This will be discussed in separate instructions for setting up these options.
IPTV
To configure IPTV on a DSL router, you need to set the “Enable IGMP” parameter when configuring your Internet connection. This was mentioned in the section of the article informing about setting up a DSL connection through the Dom.ru provider.
Then you should connect the TV set-top box with a network cable to the DSL router, perform the following steps in the configuration menu:
Name: come up with any name for the connection. In the LANs section, check the box next to the connector to which the set-top box is connected. In the WANs section - the bridge mode created earlier. Click "Apply".
You need to reboot the DSL equipment to save the configuration.
Dynamic DNS
The 2640u network device supports the ability to configure a dynamic DNS server.
By default, the dsl wi-fi router model 2640U offers to use the DDNS address from the manufacturer. The user himself determines the most convenient service for him.
Security settings (antivirus, firewall)
Then you should click “Apply”, and then reboot the DSL router for the changes to be saved.
To enable the function " Parental control“You need to go to the “Control” menu and select the appropriate option. Next, click the “Add” button: 
You must specify following parameters. “Name”: come up with a name for the service. “Execution days”: check the checkboxes for the days on which this rule will be in effect. The next two sections are responsible for the time interval accurate to the minute, fill them out. “MAC address”: specify the physical address of the equipment for which this rule will be applied. Click "Apply". To use the parameters, it is best to reboot the equipment. 
Setting up the printer
You cannot directly connect a printer to a DSL modem. It is possible to use this equipment only for connecting to the printer via a local network.
Possible malfunctions and ways to eliminate them
If your DSL router has problems, the first thing you should try is to reboot the device. Another option is to reset the settings to factory settings. How to do this is described below.
It is also worth remembering that cables can also be damaged. It is worth carefully checking all connections on the equipment and devices connected to it. Sometimes situations arise when the problem is on the side of the Internet service provider. Then you should call technical support and get expert advice.
If the DSL router still does not work, it is recommended to contact a service center. Our technicians will diagnose the problem and help you solve it.
Firmware update
Equipment becomes obsolete over time. In order for it to last longer, it is periodically “stitched”. The manufacturer posts the latest updates on the official website. For the 2640u model they are downloaded from:
The last update dates back to 2013. It means that this device no longer supported by the manufacturer. Let's look at how you can update your DSL modem.
Via web interface
Via the “System” menu, “Software Update” item: 
There are two update options in the window.
The current example uses a 2640u network device Wi-Fi dsl emulator, so the screen displays the message: “Unable to check for a software update.”
Via mobile application
There is also an option to update via mobile app. It exists for Android platforms and iOS.
Unfortunately, the 2640U model is not currently listed compatible devices. Accordingly, the user does not have the opportunity to make this operation via mobile application. The list is constantly updated and its status can be monitored in the application store.
Resetting the router to factory settings
There are two ways to perform a reset on the DSL 2640U device. In the first case, just click Reset button on the reverse side, holding it for 10-15 seconds. Resetting all LEDs at the same time will indicate that the process is complete.
The second option is through the web interface. To do this in the left top corner select “System”, then “Factory settings”: 
Within two minutes, the network DSL device will roll back to the factory configuration.
Conclusion
Dsl "wi-fi" d-link router 2640u is a model that supports legacy ADSL technology. It is suitable for work mainly in remote settlements of the country, where, apart from the telephone line, there are no other alternatives to wired Internet.
For setting up a D-Link in a private home, the DSL 2640u is perfect. Nice and clear interface, minimum operations. Configuration is completed in 4 minutes.
pros
The 2640u network device belongs to the line of budget DSL routers, that is, its price is reasonable.
It is possible to use it in other modes besides the router. Great alternative as an access point
Minuses
The equipment uses xDSL connection technology, which is rarely used today. For its operation on modern protocols, firmware for third-party modes is often required. However, this results in the equipment not working.
The DSL-2640U router is a product of the well-known and previously popular company D-Link. Currently this model is found less and less often, even despite the relatively low price and very good technical characteristics.
DSL 2640u modem: brief overview and characteristics
Among the technical characteristics of the router it is worth noting:
- ADSL: 1 port with RJ-11 connector;
- Supports 802.11b, "g" and "n draft" standards;
- Support for monitoring the status (correctness) of connections (SPI);
- Support for "Port Triggering";
- Equipped with a system for detecting possible intrusions and recording events.
More detailed list The technical characteristics of the dsl 2640u router are shown in the illustrations:
Indicators and connectors of the dsl 2640u router
On the front panel of the DSL-2640U router there are nine indicators that provide the user with the following information:
- "Power". If the indicator is red, the device may have malfunctioned; if it is green, the power is on.
- “LAN 1-4” If the indicator blinks green, the port is active and a device is physically connected to it.
- “WLAN” - constantly lit - the wireless network is active.
- “WPS” - blinking - attempt to establish a connection, constantly lit - connection successful.
- “DSL” - constantly lit - DSL synchronization is successful, flashing - signal search.
- “Internet” - constantly lit red - authorization errors, blinking green - WAN interface is active, constantly lit - connection established.
The following elements are located on the rear panel of the case:
- “DSL” - port for connecting a telephone line;
- “LAN 1-4” - ports for connecting network devices;
- “WPS” - a button for quickly synchronizing devices with a wireless network;
- “Wireless ON/OFF” - button for physically turning on/off the wireless network;
- “ON/OFF” - button to turn the router on/off;
- “12V=0.5A” - connector for power adapter.
How to set up an Internet connection on a d link dsl 2640u router?
To enter the router settings interface, you will need to enter 192.168.1.1 into the address bar of your browser, and to confirm your login, enter login and password (standard login and password admin/admin).
To gain access to the Internet you need to create a new connection:
open the “Network” section - in the window that opens you can see previously created connections - click “Add”;
on the “Home” tab, in the “Name” line, enter the name of the connection to be created;
in the “Connection type” line, select one of the options:
"Bridge"
Enter the value “VPI” and “VCI” - according to your region and provider, the rest can be left as default.
"PPPoE" or "PPPoA"
Enter the data specified in the agreement with the provider - this is “PPP username” and password twice.
"IPoE" (for Statistical IP and DHCP)
For the connection type “DHCP”, check the box “Obtain an IP address automatically”; for “Statistical IP”, fill in the lines “IP address”, “Network mask” and “IP address of the gateway” - according to the data from the contract.
It is also worth paying attention to additional parameters:
- “Firewall” - protection against “ARP” and “DDoS” attacks;
- "IGMP" - multicast traffic;
- “Keep Alive” - keeping the Internet connection active.
Setting up wifi on a d link dsl 2640u router
To create a wireless network, open the “WiFi” section, go to the “General Settings” menu and check the “Enable wireless connection” box
- "SSID" is the name of the network being created;
- “BSID” is the mac-address of the computer from which the configuration is performed, the address is determined automatically;
- “Country” - Russian Federation (most relevant for Rostelecom);
- “Channel” - select either the value “Auto” or from 1 to 13;
Check as necessary: “Client isolation”, “Enable wireless guest network” and “Prohibit multicast”.
To improve the security of the created wireless network, open the “Security Settings” menu:
In the first line “Network Authentication”, select one of the proposed encryption methods:
In the “PSK encryption key” line, enter the password that will be required to be entered on those connecting to the network mobile devices, - the password must be at least 8 characters. In the "Settings" block WPA encryption» select “TKIP+AES”, the update period can be left as default.
The network is open - select the checkboxes in the lines “Enable WEP encryption” and “WEP encryption key as HEX” and enter the key in the line “WEP encryption key (1)”.
Setting up iptv on a dsl 2640u modem
To operate the router with a set-top box (IPTV), you need to create a new connection in the “Network” section:
- in the “Connection type” line, select “Bridge”;
- in the “Physical Layer” block, fill in the “VPI” and “VCI” parameters - based on the region and provider parameters;
- Leave the “Encapsulation method” and “QoS” parameters as default;
- in the table with established connections a new one will appear with the “Bridge” type.
After this, you need to assign a port to which using network cable connected set-top box. For this:
- open the “Advanced” section, then “Interface Grouping”;
- click “Add group”;
- in the “Name” line, indicate any convenient name for the group;
- from the “LANs” column, move to the right side (using the direction arrows) the number of the port to which the TV set-top box is connected;
- in the “WANs” column, move the previously created “Bridge” connection in the same way.
When you have completed all the settings for the dsl 2640u router, save the configurations by clicking “Save and Reboot” - the router will automatically reboot to apply the changes.
In conclusion, it is worth noting that this router model from the D-link company - “DSL 2640U” at one time was one of the highest quality and consistently in demand on the market. But, unfortunately, in currently this model is outdated and significantly inferior in technical specifications to their competitors.
In a large city, a consumer may get confused in choosing a provider: here you can connect via fiber optic, twisted pair, and even coaxial cable. Tariffs, packages, gigabytes - my head is spinning. In a small town, everything is simpler: there is only one provider and it provides broadband Internet access via a telephone line using ADSL technology. With its help, you can get a connection with speeds from 512 Kbps to 12 Mbps, and you can use the phone independently. To organize such a connection, you need an ADSL modem, for example, D-LINK 2640U, which will be discussed in our article.
Packaging and components of the router
The router was produced in several versions (revisions), but its configuration and packaging always remained the same.
The strict and laconic design of the packaging indicates that there is a high-quality professional product inside.
The box with colorful printing in D-LINK brand colors contains a pressed cardboard tray. Its recesses contain:
Appearance and description of indicators
Thanks to the LED elements located on the front panel, you can find out about the modem’s status even without a computer. Nine indicators display network activity, ADSL line status, and wireless connection. Let's look at them in order of location on the modem from left to right.
On the front panel of the modem there are LED indicators, by which one can determine current mode device operation
Table: status indicators of the D-Link 2640U modem router
| Power indicator | Lights green when the device is turned on and operating. Lights orange when the modem is in disaster recovery mode. |
| LAN1-LAN4 indicators | Flashes when the corresponding LAN port The client is connected and information is being exchanged. |
| WLAN indicator | Flashes to indicate wireless network activity. |
| WPS indicator | Wireless Quick Setup (WPS) status indicator. Flashes when the WPS button on the modem is pressed. Goes off after the wireless client has successfully connected or after a timeout period has elapsed. |
| DSL indicator | Flashes during the process of establishing a connection via the ADSL line, lights up constantly if the line is connected and the connection is successfully established. |
| Internet indicator | Lights up if authorization has been successfully completed and communication with the provider has been established. |
The appearance of the modem-router changed along with the change in the general corporate identity devices from D-LINK, and along with the design, the hardware also changed significantly.
Photo gallery: appearance of D-Link 2640U modems of different years of manufacture
The very first version of the router is designated revision C1 More a new version The router is equipped with built-in Wi-Fi antennas. Currently, the modem-router is available in an updated design with one external Wi-Fi antenna
Technical characteristics of D-Link DSL 2640U of different revisions
The D-Link DSL 2640U modem router has been in production for almost six years. During this time, several revisions of this device were developed, which, despite the same name, differ significantly technically.
Table: comparison of modems of different revisions
| Model name | DSL-2640U/RA/U1A | DSL-2640U/RB/U1A | DSL-2640U/B1A/T3A | DSL-2640U/BB/C4C |
| Description | Wireless N 150 ADSL2+ Modem Router | Wireless N 150 ADSL2+ Modem Router | ADSL2/2+ Router (Annex B) | |
| Version | ||||
| H/W | U1 | U1 | T3 | C4 |
| F/W | 2.0.20 | 2.0.3 | 1.0.7 | 1.0.2 |
| Hardware | ||||
| External antenna type | 2dbi x 1 | 2dbi x 1 | 2dbi x 1 | 2dbi x 1 |
| Network adapter (power supply) | 12V/0.5A | 12V/0.5A | 12V/0.5A | 12V/0.5A |
| Green Ethernet | Yes | Yes | Yes | No |
| Configuration utilities | ||||
| Click 'n' Connect | Yes | Yes | Yes | Yes |
| Quick wireless network setup | Yes | Yes | Yes | Yes |
| Virtual Server Setup Wizard | Yes | Yes | Yes | Yes |
| IPTV Setup Wizard | No | No | No | No |
| Interfaces | ||||
| Wireless WIFI connection(a/b/g/n) | IEEE 802.11b/g/n, 2.4Ghz | IEEE 802.11b/g/n, 2.4Ghz | IEEE 802.11b/g/n, 2.4Ghz | IEEE 802.11b/g/n, 2.4Ghz |
| ADSL | 1 RJ-11 port | 1 RJ-11 port | 1 RJ-11 port | 1 RJ-11 port |
| LAN | 4 x 10/100BASE-TX | 4 x 10/100BASE-TX | 4 x 10/100BASE-TX | 4 x 10/100BASE-TX |
| USB | No | |||
| ADSL Standards | ||||
| ADSL | Multi-mode ANSI T1.413 Issue 2, ITU-T G.994.1 (G.hs) |
Annex B. |
Multi-mode ANSI T1.413 Issue 2, ITU-T G.992.1 (G.dmt) Annex A, ITU-T G.992.2 (G.lite) Annex A, ITU-T G.994.1 (G.hs) |
ANSI T1.413–1998 Issue 2; ITU-T G.992.1 (G.dmt) Annex B, ITU-T G.992.2 (G.lite) Annex B. |
| ADSL2 | ITU-T G.992.3 (G.dmt.bis) Annex A/L/M, ITU-T G.992.4 (G.lite.bis) Annex A |
ITU-T G.992.3 Annex B. | ITU-T G.992.3 (G.dmt.bis) Annex A/L/M, ITU-T G.992.4 (G.lite.bis) Annex A |
ITU-T G.992.3 Annex B. |
| ADSL2+ | ITU-T G.992.5 Annex A/L/M | ITU-T G.992.5 Annex B | ITU-T G.992.5 Annex A/L/M | ITU-T G.992.5 Annex B |
| Internet connection types (IPv4) | ||||
| ADSL | Yes | |||
| Static IP | Yes | Yes | Yes | Yes |
| Dynamic IP (DHCP) | Yes | Yes | Yes | Yes |
| PPPoE | Yes | Yes | Yes | Yes |
| PPPoA | Yes | Yes | Yes | Yes |
| IpoA | Yes | Yes | Yes | Yes |
| Bridge | Yes | Yes | Yes | Yes |
| Ethernet (local area network) | ||||
| Static IP | Yes | Yes | Yes | Yes |
| Dynamic IP (DHCP) | Yes | Yes | Yes | Yes |
| PPPoE | Yes | Yes | Yes | Yes |
| WAN Static Route | Yes | Yes | Yes | Yes |
| LAN Static Route | No | No | No | No |
| Dynamic Route | Yes | Yes | Yes | Yes |
| NAT | Yes | Yes | Yes | Yes |
| Disable NAT | Yes | Yes | Yes | Yes |
| Port forwarding | No | No | Yes | Yes |
| Virtual servers | Yes | Yes | Yes | Yes |
| Application Rules | No | No | No | No |
| Managed Application Gateway (ALG) | SIP/RTSP | SIP/RTSP | SIP | No |
| DMZ | Yes | Yes | Yes | Yes |
| Firewall Features | ||||
| Filtering by MAC address | Yes | Yes | Yes | Yes |
| Filtering by IP address | Yes | Yes | Yes | Yes |
| PPTP Pass-through | Yes | Yes | Yes | Yes |
| IPSec Pass-through | No | No | No | No |
| L2TP Pass-through | No | No | No | No |
| PPPoE Pass-through | Yes | Yes | Yes | Yes |
| Keyword Filtering (URL-filtering) | Yes | Yes | Yes | Yes |
| SPI | Yes | Yes | Yes | Yes |
| DoS Protection | Yes | Yes | Yes | Yes |
| Graphic Authentication | No | No | No | No |
| Wireless Security | ||||
| WPS (Wi-Fi Protect Setup) | yes(PIN/Button) | yes (PIN/Button) | yes (PIN/Button) | yes (PIN/Button) |
| WEP | Yes | Yes | Yes | Yes |
| WPA-PSK (Personal) | Yes | Yes | Yes | Yes |
| WPA-EAP (Enterprise) | No | No | No | No |
| WPA2-PSK (Personal) | Yes | Yes | Yes | Yes |
| WPA2-EAP (Enterprise) | No | No | No | No |
| Guest Zone | No | No | Yes | No |
| Wi-Fi Invite | No | No | No | No |
| Modem management | ||||
| Web-base User Interface | http | http | http | http |
| Web UI Browser Support | IE/Firefox/Safari/Google/Opera | IE/Firefox/Safari/Google/Opera | IE/Firefox/Safari/Google/Opera | |
| Firmware upgrade | Yes | Yes | Yes | Yes |
| Firmware online check | Yes | Yes | No | No |
| Remote FW update | Yes | Yes | No | No |
| Config. Backup+ Restore | Yes | Yes | Yes | Yes |
| Remote Management | Yes | Yes | Yes | Yes |
| Time Setting / (D-Link NTP) | Yes | Yes | Yes | Yes |
| DDNS Client / D-Link DDNS | Yes | Yes | Yes | Yes |
| Scheduling | No | No | No | No |
| SNMP | No | No | No | No |
| Support Page Redirect Link | No | No | No | No |
| Telnet | Yes | Yes | Yes | |
| Networking capabilities | ||||
| DHCP Sever | Yes | Yes | Yes | Yes |
| DHCP Relay | Yes | Yes | Yes | Yes |
| DNS Relay | Yes | |||
| IGMP snooping | Yes | Yes | Yes | Yes |
| IGMP Proxy | Yes | Yes | Yes | Yes |
| UPnP | Yes | Yes | Yes | Yes |
| Grouping Interfaces | Yes | Yes | Yes | Yes |
| yesLAN priority (802.1p) | Yes | Yes | Yes | No |
| TR-069 | Yes | No | No | No |
| Flow control | No | No | No | No |
| System logging and monitoring | ||||
| Internal journal | Yes | Yes | Yes | Yes |
| External magazine | Yes | Yes | ||
| Email Notifications | No | No | No | No |
| System log | Yes | Yes | Yes | Yes |
| The event log | Yes | Yes | Yes | Yes |
| Testing cable connections | No | No | No | No |
| Theoretical speed (performance) | ||||
| IpoE download/upload mbps | 20,3/0,785 | 19,1/0,785 | 19,6/0,904 | 18,3/0,893 |
| IpoA download/upload mbps | 18,6/0,782 | 18,2/0,756 | 18,9/0,905 | 18,0/0,893 |
| PPPoE download/upload mbps | 19,7/0,893 | 18,1/0,743 | 19,4/0,903 | 18,6/0,885 |
| PPPoA download/upload mbps | 19,5/0,887 | 19,4/0,748 | 19,2/0,903 | 18,5/0,881 |
| Ethernet | ||||
| IpoE download/upload mbps | 93,1/93,9 | 92,1/91,4 | 92,9/94,2 | 92,6/93,2 |
| PPPoE download/upload mbps | 91,3/91,9 | 91,3/91,9 | 90,6/92,3 | 91,4/92,0 |
| Bandwidth Control | Yes | Yes | Yes | Yes |
| Maximum Bandwidth Control | No | No | No | No |
| Auto Uplink Bandwidth Measure | No | No | No | No |
| QoS Engine | No | No | No | No |
| Wireless QoS (WMM) | No | No | No | No |
| WISH | No | No | No | No |
| Print server | No | No | No | No |
| Samba | No | No | No | No |
| FTP server | No | No | No | No |
| DLNA | No | No | No | No |
Modem connection and basic setup
Unlike cable providers that provide Internet access over twisted pair or fiber optics, xDSL technology minimizes the preparation work on your premises. Ideally yours telephone line They’ll just set it up remotely and you won’t even see a live installer. All you need to do is connect the modem-router correctly, taking into account some nuances.
The equipment at the other end of your line looks much more impressive than a simple modem router
Connecting a modem to a telephone line
To provide the opportunity simultaneous work Internet channel and wired telephone, both of these devices are connected to the line through a special frequency filter-splitter - splitter. One connector connects the splitter to the telephone line, and the other two are used to connect a modem and a telephone. Don't make mistakes when connecting devices. If you mix up the connectors, neither the modem nor the phone will work.
Frequency filter - splitter - used to simultaneously connect a modem and a telephone
Several years ago I helped set up and connect aDSL modem to a family of my friends. It would seem, what pitfalls could there be? But the modem stubbornly refused to connect, no matter what settings I set. The problem lurked where no one expected it: the telephone line was on a blocker - an old device that allows you to connect two telephone numbers for one pair of wires. If you also have a phone with a blocker, order a special version of the splitter from your Internet provider, which will allow you to connect your modem. The standard splitter included in the kit will not work on such a line.
Connecting a modem to a computer
The computer can connect to the modem either using a cable with RJ-45 connectors (patch cord) or via a WI-FI network. For a stationary PC that stands in one place, a cable connection is preferable. In this case, the connection speed will be higher, and interference from neighbors’ routers will not affect the connection. Any of the four LAN ports of the modem connects to a computer port.
If the length of the patch cord included with the modem is not enough, you need to buy two RJ-45 plugs, a piece of UTP-8 cable of the required length and crimp the connectors yourself.
Crimping straight cable must be done taking into account the standard color distribution scheme for the connector pins
Network adapter settings
Almost any router also works as a DHCP server, that is, it distributes IP addresses client devices. Addresses are issued from the range specified in the router settings. For this mechanism to work correctly, you must configure the network adapter to automatic receipt TCP/IP addresses and addresses DNS server. On portable devices, such as tablets and smartphones, automatic address retrieval is enabled by default, and to translate network interface V manual mode, you have to try hard. On computers under Windows control You may encounter a situation where a network adapter is assigned a static (permanent) address. This may lead to a conflict with another device on the network that receives the address automatically. The result will be loss of access to Wi-Fi networks(and the Internet too) on both devices.
To prevent this error from occurring, you need to check the properties wireless adapter and switch (if necessary) it to automatically receive addresses.
- Click on the “Start” button with the right mouse button and select “Network Connections” from the user menu.
After clicking on the “Start” button, a menu will appear in which you need to select “Network Connections”
- In the window network connections select required adapter and with the help right key mouse open its properties.
In properties network adapter contains TCP/IP protocol settings
- From the list of protocols, select TCP/IP and double click mouse to call up its settings.
The IP address of the computer on the local network and the addresses of DNS servers are set in the TCP/IP protocol settings
- Configure to automatically obtain the network address and DNS server address and click OK.
Automatic receipt of addresses is set by selecting the appropriate items in the settings switches
Modem web interface, configuration and access protection
The modem's web interface, through which most of its settings are performed, is located at 192.168.1.1. The username is admin, and the default password is blank, meaning you do not need to enter it. To protect your network from third-party interference, change your access password immediately after initial setup modem
- Open the web interface by entering the address 192.168.1.1 in the Internet browser.
- Switch to advanced settings mode.
The main page of the modem web interface contains quick settings and connection status
- In the “System” section, follow the “Administrator Password” link.
Access to system parameters is hidden in advanced settings
- Enter your password and click the Apply button.
You need to enter the new password twice to avoid accidental errors.
Setting up an Internet connection and configuring WI-FI
Early versions of the router could only connect to an ADSL channel, and in order to use the services of a cable provider, a complicated OpenWRT firmware procedure and some soldering iron skills were required. The modern release does not require any “dancing with a tambourine” and allows you to configure any Ethernet port as an incoming WAN port.
Video: step-by-step setup of the D-LINK 2460U modem
Setting up a DSL connection via telephone cable
Creating an ADSL connection is replete with many settings, the meaning of which to a simple user may not be clear. Therefore, it is better to install it through the wizard quick settings Click’n’Connect, which will automatically test the telephone line, adjust the connection parameters to it, and all you have to do is enter your authorization parameters.
- Click the Click’n’Connect link on the main screen of the router’s web interface.
- Make sure that the telephone line-splitter-modem chain is connected and the DSL indicator on the panel is solid green.
Once you have checked all connections, click Next
- Select your connection type. In most cases this is PPPoE.
In the vast majority of cases, ADSL connections work over PPPoE protocol
- Select the ADSL interface port. When you first connect, the router creates and configures one port. You can use it.
Select the automatically created connection port
- Change the connection name to something more meaningful if you wish. Enter authorization parameters: login and password.
- Check the report on the settings made and click the “Apply” button in the lower right corner of the window.
Check the entered data and save changes
Setting up the Internet via an Ethernet cable
The new firmware of the modem-router has standard feature assign one of the four LAN ports as WAN port. This can be done with a few simple steps. In our instructions, the WAN quality will be configured LAN port №4.
- Connect your router to network port 1,2 or 3.
- Update your router firmware to the latest current version. You can download it from the D-LINK FTP server.
Switch to advanced settings mode from the main screen
- In the "Advanced" section, select "Interface Grouping".
Go to the interface grouping window by clicking on the corresponding link
- Click on the image of the selected (fourth) LAN port with the mouse and from context menu select the “Make WAN” command. In the drop-down list at the bottom of the page, select “One service per connection” and click the “Save” button.
Select which network port to make WAN
- Go to the Network/WAN page and click the "Add" button. Set the required authorization protocol, enter the login and password received from the provider.
- Reboot the router and connect the ISP cable to LAN port No. 4.
Since this modem operation mode is still abnormal, when you turn on the device, a situation may arise in which the modem will assign IP addresses to clients on your network from the external network, and not from the DHCP server pool. In this case, there will be no access to the Internet, just as the local network will not work. To prevent this from happening, before turning on or restarting the modem-router, disconnect the Internet provider cable, and connect it back 15-20 seconds after the modem has already booted.
Video: setting up a 2640U modem to work with a cable provider
Setting up Wi-Fi (creating an access point, changing the password)
The second step after setting up a connection to the provider will be to turn on and configure the wireless access point, which will allow you to distribute the Internet to devices with a WI-FI module: laptops, tablets, smartphones.
- Open an Internet browser and go to the router's web interface at 192.168.1.1.
- Click the "Advanced Settings" button.
- Make sure the wireless enable slider is in the green (on) position.
Make sure that WI-FI mode enabled - this is indicated by the position of a special slider located at the top of the Wi-Fi button
- Open basic wireless settings. Here, set the name of the wireless network, broadcast channel, and the name of the guest network. Clients on the guest network will receive internet, but will not be able to connect to the local network.
Enter the SSID, select the broadcast channel and set the guest network name
- Return to the main screen and open your wireless security settings. In them, set the encryption type and password for accessing WI-FI.
Set the type of identification of network clients, and also create and enter an access password
- Back on the main screen, click on the save settings link in the upper right corner.
When choosing a password for a wireless network, keep in mind that a long key increases the computational load on the router’s processor, the capabilities of which are not unlimited. The result can be a significant drop in network performance. Optimal size key - 8–13 characters.
Port forwarding (port mapping)
Some users need to access resources on their local network from the Internet. This may be required to organize access to home network folders, view images from a home IP camera, and remote administration Remote programs Administrator or Team Viewer and a dozen more for work required applications. To get this opportunity, you need to do the so-called port forwarding, when the router connects an external network port with a specific internal network port with a virtual cable. Setting up port forwarding is easy using the modem's web interface functions.
Open the settings menu virtual servers in the "Firewall" section
A new request routing rule is entered using the “Add” button
Setting up a modem in bridge mode
Despite its rich functionality, DLINK DSL-2640U is more of a modem than a full-fledged router, its computing capabilities are low and connecting already three or four network clients can create problems with its performance. In this case, it makes sense to use a classic router of sufficient power to build a network, and switch the DSL-2640U into bridge mode and connect to it.
Set the connection type to Bridge - when you select this interface, the modem will switch to bridge mode
Make the created connection active
Possible problems with the router and their solutions
Modem-router DSL-2640U - device entry level, positioned for home use. Operating the modem as a router-switch for a local network will create an increased load on its processor, which will lead to a decrease in performance and possible problems in the form of freezes, periodic turning off WI-FI and even premature failure.
For a long time I had to use the DSL-2640U as a router in a small office. Four computers plus two network printer and the clients’ smartphones put an incredible load on it: the modem overheated and froze, every hour and a half it had to be turned off. The management didn't want to install a new router - they were thrifty capitalists. I had to cut a round hole in the top cover of the modem and install a cooling fan from the faulty one. motherboard. Thermal conditions returned to normal, the router was able to operate without failures throughout the working day.
Video: installing cooling on DSL-2640U
Table: typical DSL-2640U problems and methods for resolving them
| Problem Symptom | Cause | Remedy |
| The power on indicator does not light up. | The power supply is faulty. | Replace the power supply with a working one. Any one with a voltage of 12V and a current of 0.5A and above will do. |
| The power on indicator glows orange. | The modem is in emergency recovery mode. | The modem firmware is damaged. Download new firmware using a patch cord as described in the operating instructions. |
| DSL light blinks constantly | The modem cannot establish a connection with the provider's equipment. | Check the condition of the connecting cables between the modem, splitter and line, as well as the splitter itself. If they are ok, contact your provider's technical support. |
| The WI-FI icon is not lit, there is no access to the wireless network. | The wireless module is disabled in the modem web interface | Activate wireless module by connecting to the modem using a cable. |
| The Internet icon does not light up, there is no network access | The login and password in the PPPoE connection settings were entered incorrectly | Using the web interface, check your account information settings and enter the correct parameters. |
| The modem gets very hot, the network access speed has dropped | The load on the modem processor is too high. | If it is not possible to reduce the number of connected clients, switch the modem to bridge mode and use it in conjunction with a regular router. |
The D-LINK 2640U modem-router is a balanced and affordable solution for accessing the Internet using ADSL technology. If you don’t have enough Internet speed, and most importantly, you need the same high speeds both for downloading and uploading - it is worth thinking about switching to another provider that provides services over a twisted pair cable or an optical channel. Purchasing a more powerful ADSL router only makes sense if you need to create home network with a large number of devices.