Lose ability to access websites after 5 hours

[spierian]

My XP Pro SP3 PC is connected to a Netgear router/modem via Ethernet.

After about 5 hours of everything being OK, it changes. I can no longer connect to websites- the browser just hangs.

I can still ping websites (eg Google) so the interenet connection is still in place.

Retstarting the PC always fixes the problem - in fact it seems to be the only solution. The problem is consistent and repeatable.

I have tried 3 different ways to connect to the router (E/net, E/net-USB adapter, wireless), static IP and DHCP. All exhibit the above behaviour. The PC is XP Pro with SP3.


Throughout this I have a second identical PC also connected to the router via Ethernet and it works perfectly.