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My big gray cylinder 5G Home internet has good signal and works reliably. But some percent of websites I visit simply refuse to load via the TMo 5g device, yet they work fine if I use my Verizon cellphone data, or a coaxial cable modem (which I have not canceled service on yet). I am guessing it’s either a DNS issue between my Mac and the T-Mobile cylinder (eg: settings requiring technical help or updates), or a problem in the T-Mo network that is blocking some sites. 

After spending too many hours on the phone already with Tmo tech support for 5G Home, I am not excited about the prospect of engaging on the phone again. It takes too long, and the agents need more training and support. 

Has anyone experienced and solved this issue? Do you have technical insights? Is there actual written documentation somewhere that I could access? Thank you. 

(Honestly Tmo, you need to rethink your support infrastructure for 5G Home.)

That might be a DNS resolution issue and stale cached data issues. With out packet captures and analysis it is just a guess. I hope this helps. 

Used my own router and used different DNS and that didn’t resolved the issue either. is most likely a routing issue withing T-Mobile.  even their Cellphone’s also having issue accessing some sites.

I use Google’s DNS server. It’s not a DNS issue. Plus, this never happened until I switched to T-mobile home internet.


If you want to verify the problem is with your T-mobile gateway go to your nearest favorite coffee shop and confirm operation with a different network. Then you have a stronger argument with support for the problem being with their gateway and network. With MS Windows there could be some hidden setting that messes with your need. 


I fixed my issue. I went and switched out my white TMUS box for a the black one. You have to transfer your account data first. The TMUS rep was great. He was baffled, same as the TMUS tech and me on why some websites worked and why some didn’t on the white box (since it is a newer unit). Now, everything works perfectly!


T-Mobile home Internet on Lenovo IdeaPad Slim 5 16IRL8 running up to date Windows 11.

 

I've had my TMO-G4AR for a couple weeks with a similar problem. I can get to "normal" internet websites but nothing that requires higher security.

YouTube, Gmail, and others are fine but I can't log into my bank account, credit card accounts, etc.

Also, I can't log into my Microsoft 365 apps on my laptop like OneDrive, Phone Link, etc.

Talked to T-Mobile tech support and they said it's something wrong with my Lenovo, talked to Lenovo tech support and they said it's something wrong with T-Mobile.

Phone, all streaming services appear to work as normal. None of these problems happen on any other wifi network I use.

I now use the ethernet cable from the box to my laptop and all works fine. Not a solution but it will be adequate for now.


After being on the phone with Tmobile and Lenovo for the past month, Lenovo walked me through resetting the network.

Resetting the network can take about 5mins so be patient.  Allow your computer to reboot and then try the websites again.

I’m not sure if this is a permanent fix or just a temp band-aid.

I hope this helps.


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