Keep having problems with my wireless, what else could it be?

I have a Belkin router set up and everything seems to work fine, the pc, xbox, wii, and even the iPad. My laptop used to work wonderfully with the internet until a couple days ago it started acting up. It disconnects me wirelessly like every ten minutes. I have tried everything possible that was suggested in Google, but it still keeps doing it. I have a Compaq with Windows 7. Please help.