My WRT54G router keeps disconnecting from the internet after only a few minutes of use - for both wired and wireless connections. The sytem tray icons on all computers still show a full powered, excellent signal connection, but I notice that after <5mins of connecting, I can no longer access webpages, play online games, or do anything on the net. The only way to re-establish access is to unplug and replug the router. I've tried connecting direclty to my modem, and that works just fine, so I know it must be the router. I can always initially connect just fine, but every single time my internet access dies within 5 minutes. I've already tried exchanging the router, and the same problem is happening. I've also tried a few of the solutions seen on these forums with no luck. Please help - I have no idea what to do. Thanks in advance.