T-Mobile Home Internet + Google Nest WiFi

Yes!!! I know how.  Could not find online, could not resolve with technical support 1+hour phone call.  The WAN port is not active on the T-Mobile Gateway, do not try and use it.  Plug Google Wifi point into the LAN of T-Mobile Gateway and the Internet WAN of the Google Wifi Point.  Then you need to assign the Google wifi point an IP address in the range of the Local LAN T-Mobile Gateway (Reset to default if this has been changed).  I just picked a random 192.168.2.XXX in the range (100-150 default I think, I used 102) Subnet 255.255.255.0 and Domain 192.168.1.1.  The wifi point then finished setup and my existing devices connected back up to it after I gave it the same name/password as my prior network.  I then using wif on a computer (can not do it in the phone app) to turn off both wifi bands (the one I wasn't on first and then the one I was on).  Unplugged everything and moved to better location and it all worked when powered back up.  *Note - the app will no longer work but you can log back into the gateway page using the 192.168.1.1 admin and your password, alternatively you could do a hard reset on the gateway to get back in using default wifi.