Sorry for the long post, but i thought it was informative.
So I had an online chat with an ATT rep about the terrible 4G speeds. Enjoy. (FYI Edited to remove names and superfluous info)
Me: I just got a new HTC Titan phone and the download speeds over the "4G" network are terrible
ATT Rep: I can assist you with that.
Me: nearly full bars and it says "4G"... but i'm getting consistently 1Mbps or less
ATT Rep: Okay.
ATT Rep: One moment please.
ATT Rep: Okay.
ATT Rep: With WiFi off. Please go to att.com/ttr from your device to test your mobile Internet connection.
Me: says it's connected
ATT Rep: Okay.
ATT Rep: Do a speed test and let me know what you get.
Me: speeds are the same as before, maybe even slightly worse
ATT Rep: Have you run a test?
Me: .9 Mbps
Me: yes
ATT Rep: Okay.
Me: oh jumped to 1.03 at the last second
ATT Rep: Okay.
ATT Rep: One moment please.
ATT Rep: Go to Settings > Wireless and Networks > Mobile Network. Access Point Names. What selection is showing?
Me: different server, similar speed 1.3
ATT Rep: Okay.
Me: there is no wireless and networks setting
ATT Rep: Whatever is similar.
Me: under cellular it says "active network - AT&T"
ATT Rep: Okay.
ATT Rep: What is the signal showing at the top of the screen?
Me: 3/5 bars currently
ATT Rep: Okay.
ATT Rep: 1.3 mbps with 3 bars is close to what is expected. Is there an area you can move to with 4 or 5 bars.
Me: 1.3 is 3g speeds... not 4g
Me: not that this is really 4g to begin with but come on...
ATT Rep: Yes, but reception determines speeds.
ATT Rep: 2 to 3 bars will allow and Internet connection but not at the highest speeds.
Me: at 4 bars in the other room i broke 1.5 Mb, but barely
ATT Rep: Okay.
ATT Rep: Power off the device and remove the battery.
Me: do you know what rating of HSPA+ this is?
Me: 8? 10?
Me: battery removed
ATT Rep: Not aware of a rating system.
Me: or category
ATT Rep: What SIM card did you use for this device?
Me: the one from my previous phone, I tried using the one that came in the phone, and it gave me an error
ATT Rep: Okay.
ATT Rep: The SIM card that was in your old device is a previous SIM version and there is a new SIM version (the one that came with the device) and this was designed for our 4G/LTE networks.
Me: k swapping
ATT Rep: Okay.
ATT Rep: Place the new SIM card in your device along with the battery and let me know when you are back to the homescreen.
Me: k
ATT Rep: Okay.
Me: back
ATT Rep: Okay.
ATT Rep: Call 611 to test calling features.
Me: works
ATT Rep: Go to att.com/ttr from your device to test your mobile Internet connection.
Me: yes
ATT Rep: Try a speed test.
Me: let me go in the other room, brb
ATT Rep: Okay.
Me: finicky, seems my reception isn't as good. 1.15Mbps - 3 Bars
ATT Rep: Okay.
Me: and then i got a decent 4.54 with 4 bars
Me: but then i got a .14 with 2 bars
ATT Rep: There we go.
Me: all standing the in the same spot
ATT Rep: TIme of day and reception play a huge part in your speeds.
Me: i had better speeds with my 3g phone
ATT Rep: For a more accurate test: go to dslreports.com/mspeed and tap on 100k.
Me: result said 'Unstable/too fast a result
ATT Rep: 4pm-6pm is a slow period of time in California, unfortunately. This is due to the amount of commuters using the available bandwidth.
ATT Rep: Tap on larger file.
ATT Rep: Choose 1MB.
Me: taking way too long
ATT Rep: Okay.
Me: 169 kbit
Me: 48 seconds
ATT Rep: That site has been acting strange today.
ATT Rep: Its not an AT&T site so I wanted to check to see if it was working again, guess not.
Me: it worked it was just slow
Me: but that's the problem to begin with
ATT Rep: The site has been doing that for most of the day.
Me: tested with a smaller file, 136k this time
ATT Rep: Okay.
Me: can you make the reception in my area better? that'd solve the issue =P
ATT Rep: The best I could suggest is relocating to an area with 4-5 bars consistently and run another test.
ATT Rep: I can only see the towers, I cannot affect them.
Me: so unless i have better than average reception, i will get sub 3g speeds?
ATT Rep: Sub 3G would be less than 165 kbits.
Me: i mean, 3 out of 5 bars is pretty much always... and the speeds are on the lower end of the 3g specturm
Me: right
ATT Rep: Kinda.
ATT Rep: 4G is 3G.
Me: lol can i quote you on that?
ATT Rep: 4G is the next and last evolution of our "3G" technology.
ATT Rep: The iPhone 3G was technically 3.75G.
Me: so LTE will be 5G?!
ATT Rep: G is for GSM.
Me: i see... everyone has a different label.
ATT Rep: The LTE is it own technology separate for GSM, which is the network AT&T run on.
Me: well, i'm dissapointed.
Me: what is the theoretical cap on my "4G"?
Me: 7.2 or 14
ATT Rep: The thoeortical cap is 4gbits.
ATT Rep: or 4000mbps
ATT Rep: Try the test again after 8PM and if you are still getting less than 2mbps on average we can escalate the issue and see what else can be done.
Me: what else can be done?
ATT Rep: It would be up to the next level support, I am unfortunately not with that team.
Me: I see, well you have been very helpful. again i applogize if i'm frustrated, but this is frustrating.
ATT Rep: I hope that I was able to make a little less murky.
Me: yes you were great, not the answers or results i wanted, but i can't blame you.
ATT Rep: The data network gets strained at peak times. If a ticket needs to be filed its best to do so when conditions are optimal so that 'Peak' time is not an excuse for the slower speeds.
Me: I'm going to go drink now.