Hi @Grace Yin ,
According to error messages, here are some troubleshooting steps for your reference and hope these help you:
- Since freshly installed Exchange servers may not be configured to accept incoming PowerShell connections. To fix this and let your server configure all the necessary services, execute the following command in PowerShell: Enable-PSRemoting
Above solution is mentioned in the blog you could refer to it: How to fix problems related to remote PowerShell connections
- Checking if SSL certificate was no longer bound to the Exchange Back End website on that Exchange 2016 server. To fix this, in IIS Manager right-click the Exchange Back End website and click Bindings, Highlight https and click Edit, choose the certificate you want to bind to the site. Then run iisreset in cmd, retry EMS.
Detailed information: The WinRM Shell Client Cannot Process the Request
- Make sure the DNS is working perfectly. Then open iis in exchange 2016, select default Website -->Power Shell. Change the physical path from: C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\PowerShell to: C:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\PowerShell. At last, restart IIS.
A similar thread for your reference as well: Exch 2016 Management Shell Broken - TheWinRM client cannot process the request
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