So i run a 4 node Hyper V Failover Cluster and twice now.... out of months of operations out of the blue on a node a portion of the VMs just lose network access(this has happened on two different nodes). I can just pause the node and everything migrates off, and then its back up and going. Give it some time and i can unpause and move back. I am looking for ideas on what could be causing this.
There servers are Dell Power Edge 620 with the latest MS patches and Dell drivers and firmware. On my public side i have a 2 nic team using MS software teaming.