I recently set up my TP-LINK router WR642G and it worked for a while but suddenly stopped working. Initially it was connecting through the LAN without needing a network connection to be set up to connect to my ISP. When it stopped working I created a network connection to my ISP and it started working, but I think over-ridden the modem or something because no wireless connections will work now. They can connect to the router, but no websites display.

I've tried resetting the router, factory reset, deleting the network connection, unplugging the router, unplugging the modem. Nothing is working. My Ethernet connection only works if I set up a new network connection. If I try to connect again through the LAN I get the same issues as with the wireless. A connection but no internet.

No firewalls, and I've used multiple browsers.

Any help is appreciated.

Computers & Internet - Linksys - Wireless-G Broadband Router