If you recreate server with the same name that has been already joined in your cluster, you will end up with this error message. WARN[0000] not running in CIS mode INFO[0000] Starting rke2 agent v1.21.3+rke2r1 (2ed0b0d1b6924af4414393cd1796c174a1ff5352) INFO[0000] Running load balancer 127.0.0.1: