Environment- This article applies to Aruba Controller running AribaOS version 6.3.x and higher.
Answer- While configuring the IP address of controllers in the domain, make sure we follow the following rules:
If controllers have VRRP configured, use VRRP IP address in the AirGroup domain.
If no VRRP configured, use switch IP of the controllers in the AirGroup domain.
Make sure we configure the domain as active domain on all controllers that are part of the domain and then disable AirGroup on all controllers and then re-enable AirGroup on individual controllers.