Why linelink number is not working
If you just search for, “t-mobile linelink problems” you should get multiple hits that can possibly help you get it working.
There is also a community conversation:
LineLink doesn't work with T-Mobile 5G home internet router
Search for LineLink in the community search and you should get more information that way.
NOTE: You are not alone.
Reply
Enter your username or e-mail address. We'll send you an e-mail with instructions to reset your password.