| | Re: AT&T 4G Trouble in Los Angeles
Sounds to me like a tower problem. I was in an AT&T "white hole" for several months at my house until they figured out that it was a tower about a mile away that I was hitting. Once they got that fixed, it has been working OK on my 9810 and indicating H+ most of th time.
Similar issue with Verizon until we got LTE. Now they work great.