What Can Go Wrong - ZyXEL Communications ZyWALL 110 Handbook

What can go wrong?

1. Why I can't see correct license status from myzyxel.com server?
On the Device-HA Pro setting, there is a function "Serial number of the licensed
device for license synchronization". You should entering device's S/N which with
licenses. So you can transfer all of the licenses to "Activate" device, and entering
this device's S/N in frame.
2. Why nothing happened after enabled Device-HA Pro?
After you enabled Device-HA Pro, the secondary device will not forward any
traffic any more except the latest physical port. So you must confirm the physical
port already connected with each other.
3. Why after Device-HA failover to secondary device, it will not fallback to primary
device?
Because Device-HA Pro purpose is for networking environment stability, so after
mechanism failover to secondary device it will keeping the latest status even
primary device is back. It can avoid the network service unstable.
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