FortiOS restricts the automatic firmware upgrades to the FortiGate
Automatic firmware upgrades update the FortiGate and any connected FortiSwitch, FortiAP, and FortiExtender devices. This caused issues with FortiAPs going into a boot loop due to reboot timing. Starting from FortiOS 7.2.8, a temporary fix is introduced: restrict the automatic firmware upgrades to the FortiGate only.