A wireless mesh access point (AP) determines a candidate set of Basic Service Set Identifiers (BSSIDs) or other unique identifiers by monitoring for detection of a set of wireless communications, each bearing a unique identifier. The AP selects a candidate unique identifier from the candidate set. The AP establishes a wireless communication link with a controller of a wireless mesh network associated with the candidate unique identifier. The AP transmits a request to the controller to join the wireless mesh network associated with the candidate unique identifier. The AP receives a response from the controller indicating either acceptance or rejection of the request. If the response indicates rejection, the AP rejects one or more unique identifiers in the candidate set in response to reason information included in the rejection.