Exchange: The WS-Management service cannot process the request. The load quota for the system has been exceeded.

Aprendo la PowerShell di un server Exchange (2010/2013/2016) può capitare di ricevere un errore del tipo:

VERBOSE: Connecting to SRV-EXC01.byteware.local.
New-PSSession : [srv-exc01.byteware.local] Connecting to remote server srv-exc01.byteware.local failed with the
following error message : The WS-Management service cannot process the request. The load quota for the system has been
exceeded. Send future requests at a slower rate or raise the system quota. For more information, see the
about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ New-PSSession -ConnectionURI "$connectionUri" -ConfigurationName Microsoft.Excha ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 + CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotin
 gTransportException
 + FullyQualifiedErrorId : -2144108120,PSSessionOpenFailed

Per risolvere il problema dovete aprire la console Internet Information Services (IIS) Manager e all’interno degli Application Pools effettuare il Recycle dell’MSExchangePowerShellAppPool:

Successivamente la Exchange Management shell si aprirà senza problemi: