5g home internet - some sites won't load

I called T-mobile tech support and told them about the entry above that mentions the applied content filter. The tech talked to a supervisor and then told me they were not aware of any such thing existing. After much searching and reading articles I was convinced it was related to network security or encryption protocol. I attempted to update the driver for my network adapter, but it said it was up to date. However, Windows Update found 4 other updates that were available for my Windows 11 Pro system. One of them was a cumulative update for the dot NET versions. I ran the four updates and rebooted about 3 times during the installs. Then, my connection to all websites started working. If you can connect to Google, Youtube, and other popular websites, but cannot connect to others, like Walmart.com, try updating all your drivers and applying Windows updates. It worked for me. Good luck. 

So I ran into the same issue where even my LG smart TV would play any content even though it was connected to the internet.  Lowkeyhitech was correct that TMobile has a filter applied by default on some accounts (business ones usually) that block specific sites.  The solution is to call TMobile and have it removed, but it needs to be done with technical support because customer service won't know anything about it. 

LowKeyHiTech wrote:

It's an applied content filter from T-Mobile. You have to call and get it removed...

I have the same problem too. Some websites does not work when I use T-mob 5G but works on ATT Router.

It's an applied content filter from T-Mobile. You have to call and get it removed...

I just got 5G Home Internet and had same issue over ethernet, but WiFi worked fine. So i compared the IP settings of both connections on my Mac. I noticed the ethernet connection was missing the router IP in the DNS settings. Once i added that everything worked.

Adding to the data points here… I'm having the same problem (any device or browser connected to TMobile Home Internet/5G) not rendering certain web pages. It cleared up when I used a VPN.

I started to use Tmobile home internet 15 days ago. It had been working fine until I paid my first payment. Some websites are not loading, even one of my work VPNs cannot be connected to. Nothing wrong about browser, cache, or OS. One of my friends lives few blocks away, he is having the same issue. We tracked down with other ISP's, NTT said this: It is very interesting that forcing the return path over Telia worked. That effectively removes Sprint<>Tmobile (Telia routes through Zayo->Tmobile) and futher indicates the trouble is somewhere along that Sprint/TMobile LAX handoff. 

I guess it is a Spring<>Tmobile merge issues which they have never really resolved. It works if we re-routed a website to skip Sprint<>Tmobile router.

Tmobile Tech support team is not helping much so far. This is just pushing customers away.

T-Mobile Home Internet has blocked Consumer Cellular for me.

Doesn’t appear to be a DNS issue with my devices, because when I switch to a T-Mobile cellular connection or use the hotspot, the link works fine.

Wonder if T-Mobile is limiting access to competitors?

Does anyone from TMobile answer questions on this site? Anyway, I am having the same issue on one site. Everything worked fine for the first month and now I am having problems getting info to load on a site I need for work. It works fine when I use my Verizon  Hotspot. Since this is a work laptop I have limited capability to change things on it. Is there a simple solution to get the site to work?

We are having the same issue.  My wife is having problems working from home when connected through the 5G router.  All pages load fine when connected through the CenturyLink router, but do not load when connected through the 5G router.  Doesn't appear to be a workaround or solution yet.  Will have to cancel T-Mobile internet.  Disappointing since it is much faster than our DSL.  But if certain web pages won't load....