The XOS command vrrp-relinquish-master takes effect only if the given failover-group is master, enabled, and actual-priority is less than 255.
The command vrrp-relinquish-master is only applicable when the priority is lower than 255. The VRRP priority value 255 implies preemption.
To allow vrrp-relinquish-master adjust the configured VRRP priority to a value lower than 255.
The CLI in XOS version 9.6 and newer displays a more descriptive error message that shows all requirements of this command: