I started having this issue 4-5 weeks ago and also reached out to the T-mobile tech support without any success.
When connected to the LTE network when I try to access certain websites like reddit.com or stackexchange.com or whatismyip.com the browser just doesn't display anything. However, if I try to access other sites like news.google.com it is working fine. Same thing with the apps too. The google maps and other apps works fine but apps like spotify or pandora can't connect. If I connect to WiFi everything works fine without any issues.
Here are the things that I have already tried
- Network reset. (did this like 100 times already)
- Did a factory reset of the phone and set it up as new
- Went to the Apple store for support. We even took out the SIM and put it in the different phone. We still had the same issue so we ruled out it was not a device problem.
- To verify it was not a coverage issue, I tried with friends phone to access these sites from the same location and their phones do not have any problem.
T-mobile team says that their network have no problem and look for hardware support. Apple says there is no issue with the hardware.
Also, I have two lines in my account and both lines have the same exact problem.
Does anybody have similar issues? What else can I do to resolve this issue? Is the only solution left for me is to switch to different provider?