After SSL certificate verification is enabled, synchronization will only take place on the devices that have a SSL certificate signed by a trusted certification authority. Synchronization of devices without such SSL certificates is disabled.

To be verified successfully, the device certificates have to be signed by a certification authority and include an IP address/domain name of the device. The certification authority (CA) certificate has to be trustworthy on the server on which Access Commander is running. The device certificates have to be uploaded via the device web interface (System > Certificates > User Certificates) and set as HTTPS Server Certificate in Services > Web Server > Advanced Settings.