iPad drops signal whenever streaming video...but only on home network and Anroid phone doesn't

Bear with me but this is sort of a complicated problem. I had a problem back in October where anytime I'd stream videos on my iPad after the ios upgrade it would lose an internet connection. I tried all sorts of things: resetting network connection, reseting iPad overall, resetting modem, and waiting for the ios 7 updates (currently running most recent one of 7.0.4).

After all of this I'm STILL having problems with streaming video. Basically, almost anytime I stream a video--youtube, netflix, etc--on my iPad, after maybe 2 minutes the connection will drop and the whole wifi network at home will disconnect. (Note: its not just my iPad that will lose the connection, but also my computer, which is a PC, and my phone, which runs android).

I did a few experiments to see what the problem was and found this:

• if I watch the same streaming video on my phone (Android) or computer (PC) there's no problem at all. Even right after the WiFi connectio drops and I need to reset it. And I've tried re-watching something on my iPad after watching it on my droid and....the connectio drops
• If i watch the same streaming video--or any streaming video for that matter--at another person's house I don't get this problem whatsoever.
• my roommate, who also has an iPad (as well as iPhone and a Mac), gets this same problem when streaming video--but only from our home

So from that all I can tell is that there's something wrong with streaming video, but ONLY on our network, and ONLY on Apple products. I'd say it was a problem with my ISP provider, modem, or router, but then why would streaming video work on my Android phone and computer (I posted on a Comcast forumfor anyone interested, but my calls/chats with tech support have been...unhelpful to say the least).

Any help would be GREATLY appreciated. Would really like to be able to watch things on my iPad instead of my tiny phone