For the records, there is a possibility to login to the vm console (the VGA and keyboard) with "netcgx" and "aerohive" credentials to make this change.
If I make a mistake with the hive manager IP address, the hive manager won't be reachable over TCP/IP port 443 or 3000 If there is no by the book procedure, how about this: Create a VM snapshotChange the IP address using the Admin UI on :3000Migrate...