Hub tunnel over DMZ is not working.

Document ID : KB000034638
Last Modified Date : 14/02/2018
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Force security information to synchronize by stopping the controller on one of the tunnel hubs and deleting the security files from the hub directory. Then restart the hub and wait for a while for the security to be synchronized.

Shut down service controller on one machine. Delete security files in hub folder. Restart service controller. Wait a couple of minutes for the hubs to synchronize.