The operation on computer "computer name" failed

Hello,

I have installed Hyper-V 2012R2 in a domain and grand username to the local administrator. I am able to remote into the server but when try to connect via Hyper-V tool I got an error " The operation on computer failed". I have follow hvremote and still unable to access thru Hyper-V tools. I have stuck on this for the last 3 days and run out of options.

Please help.

Jimmy