Message: The onQ backup of Protected Node PNName has failed due to a failure of the PN. Backups will continue when the PN comes online.

Cause: A few issues can cause this problem: (1) PN and onQ do not have the same system time; (2) High CPU load; and (3) Other connectivity problems between the PN and onQ.

Solution: Verify system time on both the PN and onQ. If necessary, update the system time. Go to Synchronize system time.

If that solution doesn’t work, verify connectivity by attempting to ping the onQ from the PN (see also (Agent‑based PNs) Connection Problems).

If that solution doesn’t work, you might have high CPU load: see High CPU Usage.