WS-Management service cannot process the request
In Windows Server, launching PowerShell can sometimes result in an error where the shell can't connect to 'remote server server.contesso.local', even if this is the local computer the shell was launched on. The error message is 'The WS-Management service cannot process the request. The load quota for the system has been exceded'.
The solution is to:
Logon to the specfic Exchange server on the error message.
Open IIS Management Console and navigate to IIS Application Pools.
Restart PowerShell App Pools.
The cause, via Solarwinds:
This issue is the result of the IIS/Powershell App Pool being overloaded. A restart of it will reset the App Pool back to zeros. If the server is still having issues, you might see that the system load ends up maxing out again, which can cause issues with polling. Investigation into the load on the server is recommended.