Configuring the Orbi RBR850 kit with an AT&T Fiber BGW320-500 Gateway -fequent DNS errors

Thanks FURRYe38.

Nearly 24 hours ago, I changed the MAC address in the BGW320-500 under Firewall>IP Passthrough>Passthrough Fixed MAC Address to the one proposed/seen by the  BGW320-500 (the one that ends in 75 instead of 74).

I did several DNS tests afterward which seemed to pass just fine. 

I am now in full work mode, as is my wife, and we will see how the day goes. 

I do not plan to make any changes to the RBR850 configuration or the BGW320-500 today, and I will most likely wait until another heavy work day (Monday) to see how the RBR850 behaves. I have 20 devices active on my home network, 4 being heavy users of it.

For my curiosity and perhaps the next step, my BGW320-500 supports IPv6, and so is the RBR850. Should I think about enabling IPv6 on the RBR850? 

Thanks