Personal Hotspot Problem: USB
Ok, this problem just began recently. No upgrades or software changes made before the problem began.
Equipment: MacBook Pro & iPhone4
Service: AT&T, with tethering (or whatever they're calling it now)
Problem is with the Personal Hotspot on the iPhone. When I go to the Settings, and then to the Hotspot settings... all appears well. The slider for the Hotspot is ON, and it tells me that the phone is now "discoverable". I have it set up so that I can connect to it either via WiFi using the MacBook's AirPort, via Bluetooth, or a USB connection. Except for having to ask the MacBook to lookup the available networks, and then select my iPhone on the times I wanted to use the WiFi connection... all 3 options worked just fine until 3 days ago.
My usual option of tethering was to plug the iPhone to the MacBook via USB, as I would charge my phone while using it as a hotspot. As soon as I'd plug the USB cord in, I'd see the "Personal Hotspot: 1 Connection" highlight bar on the top of my iPhone... and all would work as advertised.
However as of 3 days ago... I can no longer get a hotspot connection via the USB cord. The hotpsot 'page' in the Settings menu still appears the same, and states that should be able to connect via USB... but it doesn't. The only way I can get a hotspot connection is to use the WiFi/AirPort connection. As I sit here typing this.. even though the iPhone is plugged into the MacBook with the USB cord, I'm not connected to it via USB... but via the WiFi/AirPort.
I've tried a reset of the Network Settings to no avail. Before I take the phone to the Genius Bar... anyone have any recommendations?
Thanks
iPhone 4, iOS 4.3.3