Verifying the Upgrade You can verify that the controller upgrade was completed successfully. Go to Administration > Upgrade. In the Current System Information section, check the value for Controller Version. If the firmware version is newer than the firmware version that controller was using before you started the upgrade process, then the upgrade process was completed successfully. Note: APs periodically send scheduled configuration requests to the controller, including the firmware version. If the firmware version is different from that which is configured for the AP zone, the controller responds with a request to upgrade the firmware on the AP.