Ok this has been driving me mad for ages now as I really can't seem to find out why I am having this problem. Basically every so often, it can be 10 minutes or a day apart, I will lose my internet connection. The internet connection is set up through a WRT54GS wireless router and connected to this PC. Everything at this PC is wired though. Whenever I lose the connection to the internet I either have to shut everything down or press the 'Easy Setup' button the front of the router.
I thought it was a faulty router if this was the case but the router has been replaced and the same is happening. Now whenever there is a problem I notice that the upstream/downstream lights on the modem stop flashing completly, like there is a 'block'. So as the router has been changed I think its going to either be the modem or the ethernet port on the back of the PC (as I have changed the cabling as well).
If anyone has had this problem or can share any suggestions that would be great

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Thanks.