I installed a new TC about 2 months ago and it was working great until last week. On Friday night I noticed I had no WiFi connection, but my 2 wired devices (iMac & Mini) were accessing the internet just fine. Tried to access the TC via Airport Utility 5.6 but it would not connect. Did a reboot and WiFi came back and I could access it via Airport. Today I come home and my wife tells me we have no WiFi again. Same scenario in that I can't access TC via Airport Utility 5.6. Reboot and WiFi comes right back. It worked great until a couple of days ago. Any suggestions before I call Apple?