MY DSL 2640T after few minutes of working the adsl link/act starts blinking and the internet gets broken.

Hello,

ADSL modem is not compatable with ADSL 2+ router's. You could get the exchange from the shop to ADSL router if its still under warranty.

Hope this helped.

power down the modem . Check ADSL filters match the ADSL service eg ADSL 2 service has ADSL 2 filters.
Power on Modem wait 5 minutes for it to resync with DSL and see if internet is back up.

open the access points in the internet explorer
in it set the wireless security to WEP and provide the network encrypted password

Please check the following

1) secure cable between modem and router. it must not be loose.
2) secure cable between modem and phone jack. it must not be loose.
3) modem and router must not be near to any electromagnetic devices such as halogen lamps, computer speakers
4) cables must not be intersecting to electrical cable which sometimes cause static signals that interrupts internet signals going to modem or router

contacte the DSL provider

Follow
anurdh65 solution...........

Try diagnose and repaire the connection if that does not work Reset your modem it should go back to default manufacture setup.Then turn modem off and connect any computer or laptop to the modem with ethernet wire turn the modem on go back to your computer that you are connected to modem with wire go to network connections and disable the wireless Network connection and enable local area connection once you see you have connected and have internet working go to start menu you can do this on the start search bar with vista or run with any other windows version type cmd and press enter, it should bring a DOS command menu and then type in ipconfig and enter scroll up and down to where you see default gateway type that ip address to your internet browser it should take you to login screen username should be administrator password admin setup your WEB key make the wireless access available DO NOT FORGET to write the web key down, give a name to the connection and change the default password from admin to something you can remember. save the settings and turn that off keep the laptop on. Then unplug the ethernet cable and switch the network connectiion again enable wireless disable local area also you need to scan the available wireless internet and pick the one you just named use the webkey to access and save when the connection in made.

when the adsl is not blinking that means your phone line is having problem plz ask your phone line provider to check the line.

could you able to solve.pse share

re-configure you modem and check it your ipaddress and dns value