The issue started to appear with Windows Server 2016 June servicing patch (KB4022715), in which the following OS behavior was changed –
“Addressed an issue where the network interface description name of a network adapter is not updated in Hyper-V after a device driver update. Management of a NIC Team or vSwitch within Hyper-V Administrator or System Center Virtual Machine Manager may be affected”.
Problem Symptoms as seen in SCVMM
Hyper-V SET Virtual Switch deployed via SCVMM does not work
After SET Virtual Switch is deployed via SCVMM, and system is rebooted, the newly deployed Virtual Switch loses underlying Physical Adapters in the SET. The problem symptom is illustrated via following screenshots -
SCVMM screenshot - SET Virtual Switch displaying the underlying adapters in the team right after SET Virtual Switch creation:
SCVMM screenshot - SET Virtual Switch lost the underlying adapters in the team after the Hyper-V Server is rebooted:
For the 45000/41000 series products, the fix is in VBD [qevbd] driver version v126.96.36.199.
For the BCM578xx/BCM577xx series products contact your vendor for the [evbd] driver version 188.8.131.52 or newer.