I have been using my Maxx HD as a mobile Mobile Hotspot for months with no problems. I recently used USB tethering for the first time with the device. Ever since wireless mobile hotspot at 2.4GHz will not work. Devices that support 5.0Ghz networks can see the hotspot fine. But anything with a normal 2.4GHz wifi cannot. Usb is also still working.
I have tried changing the SSID, which I DO NOT have hidden. I have tried with and without security. Still no 2.4GHz hotspot.
2.4GHz normal wifi access with the phone is working fine. Just won't allow a 2.4GHz connection in.