ZD1200+R710: Apple products unusable with "Force DHCP" option
We have ZD1200 18.104.22.168b41 and 5xR710.
Recently the "Force DHCP" option was turned on with value 20 seconds and immediately Wi-Fi on all Apple products became not stable.
From ZD log I can see that these clients are getting "Receive Force DHCP DROP" every 5-10 seconds. How can the system force the AP to drop every 5 to 10 seconds if the configuration is set to wait 20 seconds for the station to do DHCP?