A number of our standalone VM host servers have encountered this problem following an upgrade from SCVMM 2008 to 2012.
Not all of the servers have this issue (our server clusters for example are working fine.) We have been trying to find a working solution for this for awhile now without success. Deleting and re-adding the host servers in VMM has not worked either.
We have followed the instructions in the error that is presented (and that I have attached as a screenshot) but this has not helped either.
Any help that could be provided would be greatly appreciated.
