My internet is acting wierd all of a sudden help please?

this is the first time this happened to me. im on a wireless access point. and for some reason, it cuts off about every 15 secons or so and reconnects by itself. and for some reason im the only one connected to the access point that has that problem, an hour ago i was using my internet just fine, running smooth. but i noticed on my iphone when i connect to the same hotspot, it doesnt have the problem, neither does my laptop, its just my desktop..any help?