CsClsLogging error 20000 on Lync 2013

When we try to Start-CsClsLogging -Scenario “AlwaysOn” -Pools poolname.domain.com we got these errors   Failed on 3 agents Agent – servername1.domain.com, Reason – Error code – 20000, Message – Unknown error – The communication object, System.ServiceModel.Channels.ServiceChannel, cannot be used for communication because it is in the Faulted state. CommunicationObjectFaultedException. Please refer CLS logs for details. Agent – servername2.domain.com, Reason –…