Connecting Orbi WiFi 6 System (RBK853) AX6000 to AT&T Fiber - Arris BGW210-700

[LinM]

Does anyone have a step by step resource on how to change the AT&T router settings (BGW210-700) to IP passthrough, disable WiFi 2.4 &5 and update the Orbi router for AP mode?  After reading numerous posts I believe this is the most efficient way to optimize this set up but am open to other suggestions.

[FURRYe38]

Please review this:

http://screenshots.portforward.com/routers/Arris/BGW210-700_-_ATT/IP_Passthrough.htm

https://www.att.com/support/smallbusiness/article/smb-internet/KM1188700
Also contact the ISP for additional help and information about there modem gateways.

https://kb.netgear.com/31218/How-do-I-configure-my-Orbi-router-to-act-as-an-access-point and https://www.youtube.com/watch?v=H7LOcJ8GdDo&app=desktop