I have a Linksys Wireless-B Broadband Router with 4 computers (3 desktops + laptop) all running on XP. No XP firewalls. I have a cable connection. The network was professionally set up, so there should be no problem with the settings. The network has been running OK, but I have always had a problem with losing the internet connection about once a week (even when I was on DSL, so it is not apparently a cable problem). I generally have to unplug the router, and release and renew DHCP. I have checked a few times and I seem to lose only the internet sometimes, not the internal network connections. Lately the problem has been getting worse, and particularly on one computer (the one I use most of the time to access the internet, naturally) the connection keeps going down every few minutes, which drives me wild. I generally have to unplug the router and plug it back in (usually do not have the reset the DHCP manually) in order to get the connection to work again. I have been having more frequent trouble on the other computers too. The network cards are linksys too as I recall, but have a TrendNet USB on my laptop (which seems to work most of the time - go figure). The internet connection just suddenly goes down when I am in the middle of something, not necessarily when the machine is idle.
Does this sound like a faulty router? If so, I do not mind going and buying another. I just don't want to spend the $$ if that is not the problem.