Connecting Brother HL2270DW to T-MOBILE home internet

I looked at this document:

cv_hl2250dn_eng_net_b.pdf (brother.com)

and it looks like it's "possible" (but tedious) if you find and download the "BRAdmin Light Utility."  If you want to try that, first ADD a second network with your T-Mobile Home Internet app (on your phone) that is 2.4 GHz and WPA version WPA/WPA2.  Don't make any changes to the existing network that you have set up.  Let me know here if you would like me to post more detailed instructions.

As an alternative solution, I can suggest this:  Connect the printer to your computer with a USB cable.  If the computer is On, other computers can print over your Wi-Fi network.  That is how I use my Brother printer, which is not Wi-Fi capable.