vCenter is not responding correct

Hi,

I've upgraded vCenter 5.0 to vCenter 5.1 U1a all is good, expect for the fact that when I eg. try to mirage a VM or set some settings on the cluster I get an error : The request failed because the remote server tool too long to respond. I have tried to shrink the vc database and that work for 2 min. and then backup to "The request failed because the remote server tool too long to respond".... Image may be NSFW.
Clik here to view. dose anyone know what this is?

Thanks in advance

Image may be NSFW.
Clik here to view.