Resolving Failed Actions on a Windows Resource Due to Error "The WS-Management service cannot process the request. The service is configured to not accept any remote shell requests."
Symptom
If remote shell access is disabled on a Windows resource, the Action Service in Netwrix Privilege Secure for Access Management cannot perform actions on that host. You can confirm this when an action's logs contain the following error:
Unable to connect using PowerShell remoting to <hostname> with user <domain>\<user>: Connecting to remote server <ip_address> failed with the following error message : The WS-Management service cannot process the request. The service is configured to not accept any remote shell requests.

Cause
This is caused by a Group Policy Object (GPO), configured at the local or domain level, that disables remote shell access on the resources the GPO targets:

Resolution
Verify this GPO in the Group Policy Editor on the target resource (or in the domain GPO configuration). Domain configuration takes precedence over local configuration.
Computer Configuration > Administrative Templates > Windows Components > Windows Remote Shell > Allow Remote Shell Access

You can also verify the setting in PowerShell, but the GPO must first have been Enabled or Disabled so the correct registry key exists:
Get-ItemProperty -Path "HKLM:\Software\Policies\Microsoft\Windows\WinRM\Service\WinRS" -Name "AllowRemoteShellAccess"
- If the value is set to 0, then remote shell access is Disabled.
- If the value is set to 1, then remote shell access is Enabled.

To resolve the error, set this GPO to either Enabled or Not Configured. In a domain environment, make this change in a domain-configured GPO rather than manually modifying the registry key on the target resource.