Cisco Autonomous AP WGB

Howdy,

Is anyone familiar with using an autonomous Cisco AP as a workgroup-bridge?

I currently have the bridge set up to associate with the SSID in universal mode but I guess there's no way to disable the Almond+ from rebroadcasting the SSID and acting like a repeater too. In the diagram below, my basement bridge keeps associating with the office bridge instead of the "root ap" of the ATT gateway.

Is there any way to force a MAC association for the SSID so it will only bind to the ATT side instead? As you can imagine, this is killing the Fileserver's Internet performance down to about ~16 mbit.

I decided to ditch this configuration and converted some of the phone lines in my house to Ethernet since they already used Cat5e.

As a follow-up, a more 'best practice' approach would have been to establish a dedicated SSID for the bridge specifically, although there doesn't appear to be a configuration item to associate to a specific AP MAC but rather an SSID name instead.