Test-SRTopology: Unable to create CIM Session when user is not a member of the same domain.

[Harpolean]

Prerequisites

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Links

https://github.com/MicrosoftDocs/windows-powershell-docs/blob/main/docset/winserver2025-ps/StorageReplica/Test-SRTopology.md

Summary

Running the "Test-SRTopology" cmdlet fails to connect establish a remote cim session on the specified DestinationComputerName when the user is not a member of the same domain of the server, regardless of whether FQDN is specified or not.

Details

When the CIM Session is attempted to be established by the cmdlet, it seems to truncate the input when an FQDN is specified in the "DestinationComputerName" parameter back to NetBIOS, which then subsequently fails Kerberos Authentication and throws a generic connection error.

Behaviour is experienced when the user is a member of another domain in the same forest or an external forest.
CIM Sessions are able to be established to the Destination Computer outside of this cmdlet successfully when FQDN is specified.

Suggested Fix

Passthrough the non-truncated input specified by the user in the input parameters OR update the documentation to reflect this requirement in using the cmdlet.