Server 2012 R2 Hyper-V Host Loses Network Connectivity

Here's the scenario...
We have two 2012 R2 Hyper-V hosts (VM1 and VM2) in a cluster that have 8 virtual machines that live on them. The servers are each utilizing three network connections that are teamed (Switch Independent, Address Hash). They all go to the same switch.
Three nights ago at approximately 11:30 PM VM2 lost network connectivity. The server was up it was just inaccessible from the network. I could not ping in or out from it, no internet connection, yet the network connection icon did not show that it was
disconnected.
Two nights ago we had no issues.
Last night, same thing happened at 11:30 PM. VM2 loses it network connection.
The only thing that seems to fix the issue is a reboot. Once the server comes back up everything is back to normal.
Anyone have any idea what is happening here? I do not see anything that sticks out in the logs that could point me in the right direction....

Hi Sir,
Based on my experience , first you may need to keep the physical NIC driver up-to-date .
Also please check if there is "VMQ"/"virtual machine queue" property in advanced properties of physical NICs:
If yes please disable it for each team member then check the result .
Best Regards,
Elton Ji
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If it is not the answer please unmark it to continue
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