I periodically lose internet and router connection at home. When this happens, others are using the router just fine. I am connecting directly through a wired connection to a Belkin router. I can release and renew the IP (and the IP addresses change to 0.0.0.0 and to an IP in my router's range beginning with 192.168.2. as they should) but still can't surf, can't access the router interface. Cycling the router doesn't help, and again, others are able to access the router fine at this time. Only rebooting the computer resolves the issue, and everything is wonderful for a few hours- and then I lose connection again. I have several ideas where to go from here, but I'd like to get some advice first. (Using Windows XP SP3, hardwired connection)

Update

As stated in the originally, releasing and renewing doesn't solve the issue. However, I have an update. I can ping localhost and my router IP with no problem at all when the issue occurs. However, repairing the network connection does not help. I AM able to get back on by disabling and then re-enabling the network connection in XP. What does that tell us?