Error adding Hyper-v hosts to SCVMM2012 SP1

I'm trying to setup an environment in which I can migrate esxi 3.5 vm's across to Hyper-V (Windows Server 2012). To facilitate this I have installed System Center 2012 Virtual Machine Manager (SCVMM) and have successfully made the connection with the vcenter server i've setup, but the two Hyper-V servers are resisting my efforts.

When I add them as hosts all is well until they are refreshed.

The error is returns is below:

Error (20553)
The Windows Remote Management (WinRM) client on the VMM server cannot process the request. A computer policy does not allow the delegation of the user credentials to the target computer hyper-v1.[removed].

WinRM: URL: [http://hyper-v1.[removed]:5985], Verb: [ENUMERATE], Resource: [], Filter: []

Unknown error (0x803381a3)

Recommended Action
Use gpedit.msc and look at the following policy: Computer Configuration -> Administrative Templates -> System -> Credentials Delegation -> Allow Delegating Fresh Credentials.  Verify that it is enabled and configured with an SPN appropriate for the target computer. For example, for a target computer name, the SPN can be one of the following: WSMAN/ OR WSMAN/* OR WSMAN/*

I've checked the group policy on both machines and updated appropriately, however they are a member of a Windows Server 2003 domain which doesn't have the above-mentioned group policy.

I've turned off the firewall for domain and private networks, I'm not sure what else to try.

Any ideas?
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.

harrisbenAuthor Commented:
I will award myself with the answer:

I was trying to add a trusted domain host when it should have been untrusted.

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
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
Microsoft Virtual Server

From novice to tech pro — start learning today.