Hyper-V Guest VM NIC goes offline during VSS Snapshot

I have a single stand alone Hyper-V Box (Server 2008 R2 Enterprise) at a remote office that has two VMs. Both are Server 2008 R2 VMs.

Each night my backup software does a VSS Snapshot of the Hyper-V Host. During this process only one of the VMs virtual NIC goes offline.

Get an Event ID 10: The miniport 'Microsoft Virtual Machine Bus Network Adapter #2' disconnected.

Followed 10 minutes later by a Even ID 9:
The miniport 'Microsoft Virtual Machine Bus Network Adapter #2' connected.

This issue is isolated to this one VM on this one Hyper-V host.
LVL 12
Gary DewrellSenior Network AdministratorAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Svet PaperovIT ManagerCommented:
It behaves as if the Integration services were missing or as it was connected to Legacy Network adapter. Check the Integration services first (reinstall them if you suspect that they are not up to date).  

Then if the problem persists, I would recommend recreating the virtual network adapter:

  1. Shutdown the VM
  2. Change the VM settings to disconnect its network adapter from the virtual switch/virtual adapter
  3. Using Virtual Network Manager, remove the problematic adapter and add it again. Make sure the “Allow management OS to share this adapter” is not selected if that sharing is not needed.
  4. Change the VM to reconnect its NIC back to the newly created virtual adapter
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Gary DewrellSenior Network AdministratorAuthor Commented:
Thanks Svet, I will have to do this after hours. Will let you know how it turns out.
0
Gary DewrellSenior Network AdministratorAuthor Commented:
Svete that was not the resolution. But since you are the only one that replied you get the points.

The resolution was found by Tech Support and had something to do with running out of space in the volume snapshots directory.
0
Gary DewrellSenior Network AdministratorAuthor Commented:
Thanks Svet
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Windows Server 2008

From novice to tech pro — start learning today.