Windows failover cluster cannot add nodes

Question

Hello, I encountered an error while adding a node to the failover cluster. The node status is "Failed" and the wizard is prompting that it is waiting for notification from a fully functional member of the cluster that the node is not clustered.

How can I handle this? Thank you.

Answer 1

Hi,

Please make sure the TCP port 3343 is allowed in the firewall rules.

Cluster Service	UDP and DTLS¹	3343
Cluster Service	TCP	3343 (This port is required during a node join operation.)
Cluster Service	ICMP	Echo port (This port is required during a node join operation from the Add Node Wizard.)
Cluster Service	TCP	445 (This port is required during a node join operation from the Add Node Wizard.)
RPC	TCP	135
Cluster Administrator	UDP	137
Randomly allocated high ports²	TCP	Random port number between 49152 and 65535

https://learn.microsoft.com/en-us/troubleshoot/windows-server/networking/service-overview-and-network-port-requirements#cluster-service

And it is recommended to check the Cluster logs for errors during the node join.

Best Regards,

Ian Xue

---

If the Answer is helpful, please click "Accept Answer" and upvote it.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.