2299b226__Configuration_Synchronization__status_for_individual_devices_Sync_Status
[Color] Red The local device does not recognize the disconnected device. Recommended actions: View the Device Management > Device Trust screens to see if the disconnected device is a member of the local trust domain, and if not, add the device to the domain. Use the Device ManagementDevices screen to view the specified config sync address of the disconnected device and determine whether the local device has a route to that address. [Sync Status] 
Disconnected
AskF5 | Manual Chapter: Managing Configuration Synchronization
Sync Status