Question about D-Link ADSL2/2+ Modem/Wireless Router 4-Port Switch, 802.11g, QoS (DSL-2640B)

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Red flashing light on D-Lonk wireless router dsl-2750b

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Means you have no internet connection. Try a new LAN cable between you router and internet modem. Connect directly to you internet modem make certain it is working. Reboot both devices.

The final solution is a factory reset of your router. You can do a factory reset by logging into the router using you browser. Go to the settings and perform a factory reset

If you forgot the router password, you ill have to do a factory reset by locating a small hold on the back of the router and insert the tip of of paper clip for about 10 seconds while the power is on. The router will be reset to out of box status and then you can set-up form scratch.

Posted on Jan 06, 2017

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Posted on Jan 02, 2017

SOURCE: No DSL internet connection following router install.

HI! I bliv u are having some issue setting up ur router.. I will be more than glad to assist u. Dont use the setup cd, sometimes it works, sometimes its not. here are the steps u need to do:
1. press the reset button on the back of the router for 20sec..while pressing the reset button, unplug the power plug and after 2secs while pressing the reset button plug it back in and press for 30secs after that unplug the router for 15secs then plug it back in..once all the lights are solid and ok
2. connect the ethernet cable to port1 of the router and the other end to the lan port of your computer..
3. pull up ur browser then type at the url:192.168.1.1.or 192.168.0.1 or u can check the routers default gateway by right clicking the network icon on the lower right of your task bar and click on status and it will show the ip address of the computer, subnetmask and default gateway, the default gateway is the routers ip address, once u type in to the url, it will ask u the username and password, by default the username is admin and the password is 1234 or just leave it blank
4. it will show the setup page of the router. u can set the router on the specific internet setup that u have.
a. if ur isp is a cable company, normaly u need to do a mac clone on the router setup page by cloning the computer that is reg to the cable company, how to determine it. ex. the computer that is reg to the cable company is a desktop or laptop, if this computer is connected to the modem directly and u can access internet.
b. once u determined it u need to connect this computer directly to the router and do a mac clone and set ur internet settings to auto-dhcp..then save the settings and after that, unplug to the power of the modem and router, plug in 1st the power of the modem then once all lights lit, plug in the router, then once all lights lit, try to pull up a browser that ur computer is connected directly to the router.. ur cable connection shud be, cable from the modem will go to the WAN port of the router and connect ethernet cable on port1 going to the lan port of the computer..once u can access the internet, u can now access again the setup page of the router by typing at the url:192.168.1.1 and u can setup the wireless settings, u need to create a ssid or wireless name and a security..
5. If ur isp is a dsl normaly they give u a username and password to connect to the internet, ur settings on the router should be PPPoe
6. If ur isp gives u a static ip address settings, u need to set the router to isp setup.
a. how to check the isp of the isp given to u..
1. click on start
2. run
3. type cmd
4. it will show a dos prompt
5. from the dos prompt type ipconfig/all
6. it will list the ip address, subnet, default gateway, dns server
this settings should be type in to the settings on the router for static ip addressing..

if you have any querry pls feel free to get in touch.. good luck

Posted on Sep 01, 2009

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1 Answer

What happen when a adsl line work with a phone but not with a router


The phone line does two jobs. Voice phone which is what it was originally used for and ADSL modem which works at a high audio frequency.
Somewhere between the phone socket and the modem should be a filter splitter. One part goes to the phone and the other to the router. Make sure you have that.
The modem will have a power light and several additional lights. Assuming the power light is on we are interested in two of them; The ADSL light and the Internet light. When you switch the modem on you should first see the power light flash then go solid. Then the ADSL light will flash and then this should go solid. If this light does not come on then you have not plugged the phone wire in properly. If this light just keeps flashing slowly then the modem can't see an ADSL signal on the phone line. If you have a spare router you could try it and see if the ADSL light goes solid on that.
If the ADSL light is fine then the modem has locked onto the signal on the phone line, sync'ed. If not then this is the problem you must solve. Ask your ISP if service is set on your line.
The next light is the Internet light, this maybe a symbol like an i or a world. This light will begin flashing then go solid. It will flash with Internet traffic. This means you have Internet, as far as the modem is concerned. If this light does not stay on then your ADSL account name and password maybe wrong. You can correct this but that's a different question you need to ask.

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A problem has occurred when trying to access the internet. Please check your DSL/Cable connection and verify your internet connection settings. Wtf is this ? Firmware update doesnt helped. .


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My at&t 2wire router dsl and internet light flash red often every 1 to 5 min


Hello, there could be a few things causing this problem. The router could be defective, or just died or you may not be getting enough power over your line from ATT. I would call ATT and ask them to test your line and see if everything is working properly. If it is, then you need to replace your modem/router. Any Dsl Modem and Wireless router will work.

Thanks for using FixYa!

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1 Answer

My dsl light is on green but my power light is on red. After a while no lights are on. My router is a 2wire that's about a year old


These 2Wire devices are known to have their wall-wart weaken over time. Although you can measure the proper voltage coming from the wall-wart, when you load it with the DSL modem, the actual voltage drops giving you the red power light. The green DSL light may or may not be accurate while the DSL modem is not getting the power it needs. Look online or go to a store like Radio Shack for a replacement wall wart.

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Whenever your dsl light on the 2wire modem turns red,it only means that there is a problem with the dsl connection to the modem. Here are some ways on how you can isolate the problem

1. check if your modem is properly connected to the phone jack by unplugging and replugging you phone cable
2. try to reboot the modem
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