hi
I have 2 real server and the first one have old vm and I create cluster in it .
and new one try to add it to the cluster and I get error and told me run this code to solve the error
[EDIT] This section contained wrong information of a corosync.conf setting regarding a cluster identification ID, sorry for that, accused the wrong thing.[/EDIT]
Apart from this you want to run a IPv6 multicast cluster, have you also configured the /etc/hosts files accordingly? Can you post its content?
Also how could you even add a node with this? Did you used "--force"?
As of the missing /etc/pve/authkey.pub thats another problem, maybe a result of the above, hard to tell.
Call pveum once over CLI as it should regenerate this key if not existing.