I had a similar issue and I think the only solution is MS 17.2.2   Fixed a bug that caused an unexpected LACP discarding state when connected to third party firewalls   After an upgrade from 17.2.1 to 17.2.2 everything was working regarding LACP port-channel. ... View more

If it works well, it's fun, but HA customers have money to invest more. Thank you so much ... View more