Comcast Users

I have been having problems lately with disconnecting. What happens is that I log in and play for about 2 minutes, then I disconnect. After that I can't log back in for about 5 minutes. And then this keeps going and going. I haven't heard anyone in my guild or anybody in the area talk about disconnecting problems, so I know that it has to do with my internet. So now I am wondering if this has to do with people who use Comcast or if I am the only person with the problem. Also, if someone knows how I could fix this that would be great. Thanks!

I have comcast. It's way slower than its supposed to be but i have no disconnecting problems