Apr 28 12:37:43 ca0401nth02 agent@cluster[7550]: Error: NAME_CONFLICT: new_service(): 'ns-wireguard'
Apr 28 12:37:43 ca0401nth02 agent@cluster[7550]: task/cluster/42a1ae52-d05d-43a6-a66a-1fb1d87d710e: action "join-node" status is "aborted" (26) at step 20wgboot
There’s a similar issue:
To list the services in the firewall:
firewall-cmd --list-services --zone public
To remove the wireguard firewall service before retrying to join:
firewall-cmd --remove-service=ns-wireguard