Hyper-V VSS Errors

I have a Server 2012 Hyper-V host with a Server 2012 guest.

Windows Server Backup on the Hyper-V host has been reporting the the backups have been "Completed with Warnings"

The status of the backup job reads "Completed with warnings. Backup succeeded but some components backed up were inconsist..."

On the Items tab of the Details screen I see:
N: / Completed / Full
M: / Completed / Incremental
Host Component / Completed / Full

On the Errors tab of the Details screen I see:
HyperV / The component SERVER01(Backup Using Child Partition Snapshot) was skipped during the snapshot and will not be available for recovery.  Error: The writer experienced a transient error.  If the backup process is retired, the error may not reoccur.

When I run "vssadmin list writers" I get:
Writer name: 'Microsoft Hyper-V VSS Writer'
   Writer Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de}
   Writer Instance Id: {21751d9b-b97b-4485-9438-7208912ea8b1}
   State: [1] Stable
   Last error: Unexpected error

I've tried increasing the space allowed to VSS but the error is continuing.  Where should I look next to resolve this?
LVL 3
OAC TechnologyProfessional NerdsAsked:
Who is Participating?
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.

Philip ElderTechnical Architect - HA/Compute/StorageCommented:
In our experience, to a third party product like Veeam or StorageCraft.

WSB was a _huge_ pain in the * for us so we dropped it.

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
OAC TechnologyProfessional NerdsAuthor Commented:
Any other thoughts?
Philip ElderTechnical Architect - HA/Compute/StorageCommented:
Delete the Volume Shadow Copy cache to see if that clears it up.

It's a crap shoot that has not so very good odds. :(
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
Hyper-V

From novice to tech pro — start learning today.