we have a NOD server with two relay servers sitting in two different data centers. currently all of our client servers point to relay server A and are connected via SSL tunnel over 48003. I built a redundant server with redundant tunnels for all my clients, but since they are on different networks to my knowledge HA would not auto failover tunnels? from Relay A to Relay B in case of an outage of Relay A. What is the best way to do this?