Is the desired or selected "AP tag" the exact same in both locations:
1. Wireless > Monitor > Access points
Using Tags to Manage MR Access Points
and
2. Wireless > Configure > SSID availablilty?
Using Tags to Broadcast SSIDs from Specific APs
Note: Although tags are case sensitive, it is advised to avoid using multiple capitalization variants and use completely unique tags per use-case. If similar tags are required, a hyphen or number addition should be used such as test1 or tes-t .
Are you using bridge/NAT mode?
How are the ports configured for the APs? Are the VLANs configured correctly (802.1Q) for these ports?
Do you see any event logs?
For those APs you have selected an AP tag for, do you see it showing as broadcasting (where the arrow is located below)?
