UCS Domain - Kerberos Constrained Delegation Hyper-V Migration


at a customers site we use a UCS domain and have some domain joined Hyper-V servers which should be able to (Live-)migrate its vservers among each other - which fails. They use Kerberos for authentication of migration requests as described here:

The resulting error looks exactly like when trying Kerberos migration without prior setting up the required delegation as per the above instructions. Seems like these settings just don´t work?

Did this several times before on Windows-only domains and it always worked as expected.

Any hints on where to start diagnosing this stuff? Or is this kind of setup not supported in a samba/ucs domain?

Thanks for help and any hints!