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Yet Another AT&T Fiber BGW-320 + Nest Post

Community Member

Hi, count me among the many who have had trouble getting AT&T's BGW-320 to play nicely with Nest mesh. I've tried both of the following configurations. Both have resulted in eventual failure of the mesh network (meaning the network is discoverable, but not connected). Sometimes it takes two days, sometimes it takes several months--but I inevitably get the dreaded "[Network Name] has lost connection to the internet" notification on my phone.


This has been going on for over a year, and that whole time, the AT&T connection has been rock solid. When the Nest is working, it shows a great connection (mesh test and speed test). So it's feast or famine.


1. All the things you're supposed to do: Put the gateway in passthrough, turn off AT&T packet filtering and firewall options (and wi-fi radios), set a static MAC address to the Nest primary router. This of course results in the Nest mesh being the only wi-fi network in the house, so failure becomes very disruptive.


2. Do what you're not supposed to: Leave the AT&T gateway alone (even the radios), and simply connect the Nest primary router to it. The keeps the AT&T wi-fi available when the Nest inevitably fails (so, less disruptive).


My 2,700-sqft home setup is:



AT&T BGW-320 next to a brick fireplace in my first-story office --> Cat6 to Nest --> Unmanaged Switch --> Cat6 to ethernet ports that run through the house. (The gateway has to be there, and its only outbound Cat6 cable is to Nest.)

Mesh Points

1. First-story, one room away (b/c brick fireplace), connected wirelessly

2. Second-story, connected to ethernet port

Also Worth Noting?

In addition to #2 above, the switch services ethernet ports to my TV room (TV is hardwired) and another unused port upstairs.


I can usually "fix" the issue by unplugging cables and power from the primary router (and gateway, if necessary), and then re-plugging. But recently, the failure was so bad that I had to factory reset the Nest mesh.


Does anyone have additional advice or ideas? My next move is to abandon the mesh, and try using one backhauled Nest router in bridge mode to extend the AT&T wi-fi via ethernet. If that doesn't blanket the house, and since Nest doesn't support bridge with multiple routers, then I'll have try an Airport Extreme or similar. My concern is that I may end up with multiple networks / duplicates of the same one.


Community Specialist
Community Specialist

Hello jakesussman, 

Thanks for reaching out and sorry for the delayed response. I appreciate the detailed information about the network topology in your house. We'd like a diagnostic report to check on the communication between your AT&T modem and Google Nest Wifi devices, so kindly fill out this form and one of our senior specialists will reach out to you. 

Let me know once you're done.


Hi, I just did this. Thanks!

Community Specialist
Community Specialist

Hi jakesussman,


We got your form — thanks for filling it out. Our team will reach out to you via email anytime soon. Let us know if there’s anything else we can help you with.