So I've checked and double-checked this. When connected via wireless N to my dual-band Time Capsule (2nd gen), after maybe 5-10 minutes of Face Time, the "call" drops, and I get an error that I have no wifi connection! A second later, the wi-fi connects (the 3G symbol switches to a wifi symbol). I have NO issues running Face Time over just wireless G connected to my Time Capsule. What's going on here? Has anyone else experienced this?