Autopilot E400/E500: Config is not Synced after change is configurations

After making changes to the configuration, the configuration is not synchronized.

How do I synchronize?

The configuration is not synchronized because these errors occur

SYSTEM-CONFIG-APPLY-FAIL: Error applying configuration [wlan3_max_num_clients:specified value is out of range; range is]
SYSTEM-CONFIG-APPLY-FAIL: Error applying configuration [wlan1_max_num_clients:specified value is out of range; range is]
SYSTEM-CONFIG-APPLY-FAIL: Error applying configuration [wlan2_max_num_clients:specified value is out of range; range is]

Where in Autopilot find your example for manual synchronization?

Please let me know the band and max_client_count configured in WLAN profile.

Reference:

http://community.cambiumnetworks.com/t5/cnPilot-E-Series-Enterprise-APs/Autopilot-Configuration-sync-on-managed-APs/m-p/79088.

Where in "Autopilot" I can see "max_client_count in WLAN profile"?

In AP - Max Clients 120 for 2,4 and 5 GHz

I found the following errors in the file "config.json"
For firmware version 3.7-rr9 the parameter "max_num_clients" has the value 0.

For firmware version 3.7.1-r4 the parameter "max_num_clients" has the value 255.

The parameter is not available via the web interface.
Edited the file, set the parameter "max_num_clients" to 127.
The configuration was synchronized.....