Fixing Cisco Wireless Client Association Failure ReasonCode: 102

Have you seen this error in your Cisco WLC logs?

Client Association Failure: MACAddress:xx:xx:xx:xx:xx:xx Base Radio MAC:xx:xx:xx:xx:xx:xx Slot: 0 User Name:UNKNOWN IP Addr: unknown Reason:Unknown ReasonCode: 102

There is one link on the internet mentioning this error on the Cisco Support Forums, but I found it might have an alternative solution.

Reboot the AP with the Base Radio MAC that is triggering this error.

I highly doubt this is a silver bullet for this error, but when there’s little other documentation on this error online, I figure I’d share what my fix was.