I'm running a HA Hyper-v cluster of 2 Nodes on Server 2012 R2. I have a team of 4 network adaptors for LAN traffic and a team of 4 network adaptors for iSCSI traffic to the CSVs. Everything was fine until I added a 3rd node to the cluster a while ago. Everything seems to function correctly but when you perform a live migration of any machine to any host, when the migration gets to about 67% the server being appears to get disconnected from the network for about 30 seconds. When pinging it you get about 10 dropped pings. Prior to me adding the 3rd server live migration worked fine dropping about 1 ping with no disconnection from the network.
I've tried:
Applying all windows updates to all hosts
Ejecting the 3rd node and shutting it down.
Updating the Firmware on the network cards.
Updating the drivers on the network cards to the latest versions
Removing the virtual switches and recreating them
Removing the Adaptor teams and recreating them.
I've seen a few people that have had this issue but they either go unanswered or are solved by some of the things mentioned above.
Any help would be much appreciated