Changing wifi username and password

ghostlee13 wrote:

Honestly, the easiest way to change the SSIDs and passwords is to use the T-Mobile Home Internet app.

This is the way to go. I initially went to the app before coming to the forum and it was at the very begin "setup" phase. I thought, well I've already done that. So I tried all these other suggestion and when they didn't work, went back and started over with setup. It worked perfectly. ¡Gracias!

I just spoke with customer support and they gave me : http://192.168.1.1/

That worked for me!