I have a Hyper-V VM running UTM 9.407-3 and it all works fine.
When I try and enable HA mode between it and another UTM (blank config other than IP address, hardware and NIC config exactly the same) both UTMs become unresponsive in the GUI, and appear to stop routing traffic. The console seems to remain responsive, but I wouldn't even know where to start even if I did login here!
Luckily I am able to perform a Hyper-V Checkpoint before starting this work, so that each time it fails I can quickly roll-back to a working setup.
Can somebody suggest what might be going on here ?
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