Management IP doesnt work when redundant controller is active

[leonard_tsang]

Everything is OK when the primary controller is active but when the redundant controller kicks in as active, the management IP stops working...

Running 9.6 on a ZD3000

[stuart_white_57]

Could you explain the topology of the network and where the controllers live please

[leonard_tsang]

controller IPs 172.17.80.11/172.17.80.12
mgmt IP 172.17.80.10

yes same subnet

[stuart_white_57]

Thanks, and what code is running on your controllers?

[stuart_white_57]

And you don't have them physically attached together with a single Ethernet?

I.e they are uplinked to the same or separate switch once?

[leonard_tsang]

controllers are connected to a HP2510G with the servers.
The HP2510 is connected to a layer 3 3com E5500G
The 3com connects to two core distribution switches HP 5406 ZL