Hey, so for about 6 months I've been using my iMac's ethernet connection as an Air Port for both my iphone and roommates pc around the house. recently I was using my phone and the wifi all of a sudden was horrible, playing a quicktime video that took 2 seconds to begin before was literally impossible to play, and when switched to edge it was much faster. I thought that something was acting up with my iphone and shrugged it off but my roommate soon complained the internet was being really slow on her pc. So I checked my Mac and it's internet connection was fine. The Air Port was on, I reset it, switched channels but same performance. Anyone know what to try?