HA Status Showing "Master (Isolated)" – Clarification Needed

Product Discussion Peplink Balance
1

Hello,

I am testing HA on two Peplink devices and noticed different behavior depending on how I simulate failure.
Here are my test scenarios:
:one: When I disconnect the LAN cable between the Master and the switch, the Slave changes its status to: Master (Isolated)

:two: However, when I disconnect the WAN cable on the Master, the Slave changes to: Master

What internal condition triggers the “Isolated” state in HA?

Thanks

2

The slaved router is showing Isolated since it cannot reach the master router. In this case, it assumes the master role since, as far as it can tell, the master is offline/dead.

in scenario 2, do you have a WAN uplink in the Slave? if so, the master has lost WAN uplink, and egress routing is occurring through the slave router (since it has connection to a WAN still). it does not show isolated since it can still talk to the master router.

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