In the event you are unable to connect to your Surface Mount, or you are un sure of the IP address you can perform a factory reset by pressing and holding buttons 1, 2, 5 & 6 for at least 9 seconds. You will then notice a flash of all LEDs. The bezel may be reconfigured at this point using the discovery and configuration instructions described above.
For help setting up your Surface Mount with button please refer to the below linked article.
Update link when made.