I recently moved from AT&T to T-Mobile. I have an iPhone 8 purchased from the Apple store, my wife has an iPhone 7 Plus.
We both have been experiencing severe data speed issues which have prevented us from streaming, browsing facebook (images don't load) or even just browsing the internet (pages failing to open). This occurs inside, outside and when we have 3 or 4 bars of LTE. It does occur in multiple areas and at multiple times - my wife frequently experiences problems on the train on the way home from work (it seems around 4-6pm the problems are severe) and also in our immediate neighborhood.
In the immediate neighborhood, I have been able to pinpoint to the exact block(s) where the speed problems occur. Walking outside my house for a 3 block radius, I get severe speed problems (often 0.5Mbps) which then jump to 27 Mbps or so just a few blocks away. There is another spot around 4/5 blocks away where the signal drops again. Interestingly I do seem to get higher non-LTE speeds if I turn LTE off - I can get to 5Mbps as opposed to 0.5Mbps in some cases. I don't want to have to keep flicking this on and off though!
I have had multiple trouble tickets open with technical support, but I am repeatedly told there are no problems, even though it is clear that there are. Is this just a problem with network congestion? It looks like T-Mobile simply doesn't have enough capacity? Each time I open a ticket with technical support, I am told someone will call be back - I have NEVER had a call back after each ticket which is also frustrating! I've spent a lot of time trying to debug this and figuring out in which blocks it works and doesn't work - if this is network capacity it would be great if someone from T-Mobile could just tell me straight up!!! I am in the Lakeview area of Chicago, still well within the city!
I have also tried several times to reset network settings and have changed my SIM!
Do I just give up and move away to AT&T or Verizon at this point? Unlimited data is only unlimited data if you can use it, right?
I get this terrible speed in a 2 block radius of my house:
I get this fast speed just two blocks away: