VRRP-A and aVCS Configuration

This sounds more like a network issue that a config issue…especially since it eventually does work as configured. Is the network on Eth 6 stand-alone, or is it being shared with other nodes?? Is it going through a switch of some sort?? Usually this is just a direct cable connection between the two nodes. This could also be a timing issue, as the Master is most likely taking more time to come up and get everything in the configuration going.