I have got cable internet and installed the wireless router WRT54G (Lates t firmware). I am using a linksys WMP54G v2 PCI adapter (Latest Driver) in my pc. My XBOX (the one closest to the modem/router) is wired to the router. The other pc is wireless and Running Windows XP SP2 (Fresh Install). Everything works pretty well. On my pc/xbox, about 25ft away and through a couple walls, the connection is strong and I get very good speed on both ethernet and internet. However, there's a problem... While everything is fast and works well right after I boot up, if I go idle for any period of time (a few hours or more, it seems) or if I play a fullscreen online game for any length of time, my connection loses the ability to look up websites. But, Azureus keeps on going, however a little slower, but I can't open webpages, I can't reach my router locally anymore (192.168.1.1) I can't get my e-mail. Everything indicates the connection strength and speed are fine. I'm running XP Pro SP2 and I'm not using any software firewall. I've tried using both the supplied router utility and the built-in Windows one, and neither seems to prevent this issue from occuring. I've tried repairing the connection, doing an "ipconfig /renew" or "/renew all", but neither works. Disabling and re-enabling the wireless adapter doesn't help. Logging off doesn't help. Changing MTU sizes on router and networkcard doesn't help. Only restarting my router fixes it. I have a friend with a different router and a wired connection who is also having the exact same problem. Any ideas would be much appreciated.