Troubleshooting ActiveSync.Protocol Health Set
Applies to: Exchange Server 2013
The ActiveSync.Protocol health set monitors the overall health of the Exchange ActiveSync communications protocol on your Mailbox servers. If you receive an alert the ActiveSync.Protocol health set is unhealthy, the alert indicates an issue that may affect the ActiveSync components on the Mailbox server that's indicated in the alert.
The ActiveSync.Protocol health set works with the ActiveSync health set. For detailed information about the ActiveSync health set, see Troubleshooting ActiveSync Health Set.
It's possible the ActiveSync service recovered after it issued the alert. So, when you receive an alert that the ActiveSync health set is unhealthy, first verify the issue still exists. See Troubleshooting ActiveSync Health Set.