My internet connection runs through a router then through the modem (it's an ADSL connection). There is a number of machines connected to the router, two newish PC's a PS2 and a wireless access point, trick is after a while one of the computers will stop accessing the internet. MSN Messenger will stay connected and if FireFox is logged into a server I can continue to access that server but I can't get onto any others. I'm running WinXP Pro, the IP's are assigned by the router. Once the connection goes down on the computer if I disable then re-enable the LAN connection the internet starts working again, about 50% of the time. The other machine will still work even if the one with the problem goes down, so there is clearly no WAN issues. I can also access all other computers on the network even if the internet isn't working.
If anyone has any ideas they would be greatly appreciated since I'm at the limits of my knowledge and patiece here.
Thanks in advance.