I can't even get a usable data signal on my Titan in downtown Los Angeles, although other folks in my office with an iPhone get service with no problem. It's rare that I can get a simple mobile web page to load. It usually times out. Same with speed tests. Signal strength occassionally spikes and I can download something, but it usually lasts no more than a few seconds. 99.9% of the time the signal strength hovers around 1 bar, but no data is being transmitted.
I left Sprint because their 3G was bad, but it's a helluva lot better than what I've experienced with AT&T's "4G". And at least on Sprint I could turn on my 4G antenna and get 5Mpbs+, in the same office I'm not getting a data signal at all on my Titan.
I can make phone calls fine, but the data isn't working. Incredibly frustrating.
If I walk outside and stand next to the street (most unobstructed area), I can get 3Mbps-4Mbps. But if I walk behind a plate of glass, say at a sidewalk cafe, the signal becomes completely unusable. Rather ridiculous.
AT&T says they are working on it, but I'm sure that's a canned answer. It just makes no sense that an iPhone can rock it, but my Titan gets nothing. Makes no sense whatsoever.
Either something is wrong with the phone or with AT&T's network.
EDIT: I thought my coworker, with her AT&T iPhone, was getting a data signal, but she can't connect either. This is in downtown Los Angeles. How can you have such a large deadspot in one of the largest metro areas in the country?