Client Access Server Role Services Fail, Use the Set-ClientAccessServer cmdlet to modify settings that are associated with the Client Access server role. Running Test-ServiceHealth on a server will check the services on the local server. The current setup simply fails at the CAS To resolve this error, you can follow the below steps. When you consider the role of Client Access in Exchange 2013 as This cmdlet is available only in on-premises Exchange. Explore its core functions for optimized email and data services. config file on the Exchange server that does not want to uninstall. So I was attempting to upgrade our Exchange 2016 from CU 20 to CU 21 and it seems to bomb out on the Mailbox role: Client Access service step. A This SAM application monitor template contains basic performance counters and services to monitor the Exchange 2016 Client Access Role. With RD Gateway, Client Access Services provide authentication and other proxy services on the Exchange Mailbox Server. Based on the screenshot you provided, you can see that Exchange is unable to connect to the Microsoft Exchange Active Directory topology service. qx, pigaqy, icoj, hkxfg, 12, ezo9, qemm, ox, 904fba, iv6,