MacOS TimeMachine access over ATT Router

Has anyone been able to configure the ATT router (BGW320) to allow wifi connect Macs to do a Time Machine backup to the NAS connected to the lan side

From a quick search I think the ATT router seems isolates wifi and LAN to different segmentation so the time machine can not reach the NAS by AFP/SMB.

Some people gives an idea that using another router with BGW may make things easier.

https://www.reddit.com/r/ATTFiber/comments/169iofj/my_guide_on_configuring_bgw320_for_your_own_router/

By the way, several topics (also in our community) are reporting some time machine issues after upgrading to macOS 26 include AFP is no longer supported for time machine, and the backup will fail if non-alphabet chars are used as your device name. You may also check on that.

I would highly recommend investing in your own router. You should be able to set the ATT router to “bridge” mode. Don’t use its WiFi or anything like that. Get your own wireless router and put it between the ATT unit and your network. Again, “bridge” mode is the ideal way to do this.

Thanks for the information. I was hoping to avoid buying a router for now, but it looks like this is the straw that breaks the camel’s back and it is time for me to buy one.

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