After you install the February 2017 cumulative update (KB3061064) on a server that's running Microsoft Skype for Business Server 2015 CU4 or a later version, you can't connect to remote PowerShell or run any Skype for Business cmdlets through remote PowerShell.
When this problem occurs, you may receive the following error message:
$credential -SessionOption $sessionOption
New-PSSession : [<ServerName>] Connecting to remote server <ServerName> failed with the following error message: The SSL connection cannot be established. Verify that the service on the remote host is properly configured to listen for HTTPS requests. Consult the logs and documentation for the WS-Management service running on the destination, most commonly IIS or WinRM. If the destination is the WinRM service, run the following command on the destination to analyze and configure the WinRM service: "winrm quickconfig -transport: https". For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:12
+ $session = New-PSSession -ConnectionUri "https:///OcsPowershe/OcsPowershe ...
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : -2144108102,PSSessionOpenFailed
Additionally, if you run the Skype for Business Server 2015 Deployment Wizard, you notice the following status for steps 1 and 2 in the installation:
- Step 1 (Install or Update Skype for Business Server System) is shown as Partial.
- Step 2 (Setup or Remove Skype for Business Server Components) is not shown as Complete.
If you run the Enable-CSReplica command in the Skype for Business Server 2015 Management Shell, you notice the following error entry:
WARNING: Detailed results can be found at C:\Users\seguim02admin\AppData\Local\Temp\Enable-CSReplica-[2017_03_16][15_15_56].html".Command execution failed: Method not found: 'Void System.Runtime.InteropServices.Marshal.StructureToPtr(!!0, IntPtr, Boolean)'.
This issue occurs because the .NET Framework 4.5.2 isn't installed on the server that's running Microsoft Skype for Business Server 2015 CU4 or a later version.
To fix this issue, install the .NET Framework 4.5.2 update on Skype for Business Server 2015, and then restart the server. You can download the update from the following sources, depending on your installation method:
To determine the .Net Framework version that's installed on the Skype for Business Server 2015 server, run the following cmdlet as an administrator in the Skype for Business Server 2015 Management Shell or in Windows PowerShell:
Get-ChildItem -Path Registry::"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4"
In the output, make sure that the Release dword value is 379893 or greater.
For more information, see the following MSDN topic:How to: Determine Which .NET Framework Versions Are Installed