Hi
I have 4 servers with windows 2012 in a cluster. All the firewall are set to off on all of them. All the servers were working till recently Microsoft patch was applied. Since then one of the node comes up with error "Could not to join the cluster because it failed to establish a UDP connection to node(s) " message. The rest of the nodes are fine. I have compared the network setting between the nodes, they are all looks identical. All the servers are virual each with 2 NICs, one for network and one for heartbeat. I have chanaged hostto eliminate them , still no joy.
I have ran nbtstat -a and I can see port 3343 to be open.
Any help would be much appriciated.
Thanks