Connected

Connected and fully supported

Limited support

The MPD server does not provide some commands
This usually mean an older version of MPD
Or it could be a special build with reduced functionallity like the android version of MPD which lacks stored playlists

Limited permissions

You don't have persmission to all the MPD commands
This probably means your MPD configuration is limiting access or that you don't have the password for full control

Not enough permissions

You don't have persmission to essential MPD commands
This probably means your MPD configuration is limiting access with a password

Unsupported

The MPD server does not provide essential commands
This probably means your MPD version is too old