Hi, I'm having incredible difficulty dealing with my wireless connection on a computer downstairs from the router which works perfectly for 20-30 minutes using the internet. But suddenly without notice drops out and the internet is unable to be used anymore. The IP is intact and the icon says its still recieving a signal but the internet doesn't work. But after I reset the computer the internet works fine until 20-30 mins later again it drops out, only to work again after i reset the computer. The laptop with a wireless card upstairs works fine all the time. really strange, does anyone have any thoughts? Thanks.