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troubleshooting Question

Hyper-V Virtual Network configuration changes automatically after reboot of host

Avatar of leadwave
leadwaveFlag for Canada asked on
Microsoft Virtual ServerMicrosoft Server Apps
4 Comments1 Solution750 ViewsLast Modified:
So here's the situation:

I have a Windows 2008 Enterprise with Hyper-V setup with 4 VM's.

I have 1 broadcom nic dedicated to each VM.  So I've setup 4 virtual networks on each nic so that each host would be using their own nic.

In device manager the nics are named as such: Broadcom, Broadcom #2, Broadcom #3, Broadcom #4

So the virtual networks are assigned so that VN1 is Broadcom, VN2 is Broadcom #2, etc.

Well, after we reboot the Hyper-V host, the nics somehow get renamed to Broadcom #5, Broadcom #6, Broadcom #7, and Broadcom #8.

What happens then is that none of my VM's can communicate on the network because the Virtual Networks they're associated to are linked to nics that no longer exist.  So then I have to re-associate the virtual networks with the newly renamed nics and that works until the next reboot.

Any idea what is causing this and how I may go about fixing it?

Avatar of Syed Mutahir Ali
Syed Mutahir AliFlag of United Kingdom of Great Britain and Northern Ireland imagesystems reliability engineer

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