We have a dlink dir635 router in our house which two computers connect to via wireless and two or three connect via a wire. The wireless network seems to disappear randomly. Sometimes it'll work for 10 minutes then go AWOL and sometimes it'll work for like a month or something with no problems. This is only for the wireless users in the house - the network is 100% available to everybody on a wire. Sometimes this can be fixed by resetting router. Sometimes not though - so I don't know for sure whether resetting the router does anything, it seems like an immediate cause and effect though when it does work. Any ideas? All computers are using windows xp home. One of the wireless computers is a crusty old IBM thinkpad and my one is an Intel Q6600 2gb or ram etc etc.