Exchange 2010 Management Console
The following error occurred while attempting to connect to the specified Exhange Server ‘name of the server’
The attempt to connect to server using ‘kerberos’ authentication failed:Connecting to remote server failed with the following error message : The WS-Management service cannot process the request. The system load quota of 1000 requests per 2 seconds has exceeded. Send future requests at a slower rate or raise the system quota. The next request from this user will not be approved for atleast 324122176 milliseconds. for more information, see the about_remote_troubleshooting Help topic.
try restart IIS (or IISReset command)