I need some help please

I have a belkin router and Comcast High speed internet...now when i first hook everything up it works perfect real good speed and everything. But after a couple hours it becomes basically impossible to go on the internet becasue it load so slow that an error comes up...it says it is still connected and everything but it doesnt let me go on any sites. I am also signed on Aol Instant Messanger and it works perfectly fine, It just does it for the internet. Do you kno what could be wrong?
This also does the same t hign to the computer that receivers the routers signal.

I don't understand that last part, but here is a canned answer to get your feet moving anyway.

This is somtimes typical of wireless connections, they can come and go. Is that a good answer or what?

Anyways, what protocols are you running? ie. WEP, WPA somthing like that. Somtimes these can impcat performance. What kind of location is this, an apartment building, crowded neighborhood, country road in the middle of nowhere? I ask because I'm think interference may be an issue for you.

What you can try is a program called Netstumbler. Run it on a computer with a wireless card (preferably a laptop so you can walk with it). The program will tell you if there are any other wireless networks around that are on the same channel as yours (very bad). Threre is a link below for the program.

http://www.netstumbler.com/downloads...ller_0_4_0.exe

Other causes of interference include leaky microwaves, 2.4GHz cordless phones, some cell phones, bluetooth devices, and potentailly any wireless devices close by.