After the FortiManager upgrade completes, check the managed devices in the GUI.
- Refresh the browser and log back into the device GUI.
- Go to Device Manager, and ensure that all formerly added devices are still listed.
- In Device Manager, select each ADOM and ensure that managed devices reflect the appropriate connectivity state. It might take some time for FortiManager to establish connectivity after the upgrade.
- Launch other functional modules and make sure they work properly.