Random internet D/C's ($20 free internet transfer if you can help me)

[whitelime]

Hi. I have a computer hooked up to a wireless router for cable internet. My computer is directly connected to the wireless router via an ethernet cable. The last couple of days, the internet randomly goes out maybe 2-4 times a day. The only way to fix it is to reboot my computer and then everything is fine. Any ideas what the problem could be? I am 100% sure it is not the ISP as the other computers on the network aren't having this problem.