topic Re: Failing Connect-NcController Command in Microsoft Virtualization Discussions

Failing Connect-NcController Command

TMADOCTHOMAS — Fri, 06 Mar 2026 19:07:07 GMT

Hello,

I am setting up a new 2022 Windows server to run PowerShell scripts on NetApp. I installed the latest version of the PowerShell Toolkit [9.18.1.2601] and am running a few basic commands to test. Running Import-Module NetApp.ONTAP seems to work fine. However, when I run Connect-NcController, I get the following error. This is with and without the -Ontapi switch. Any suggestions?

---------------------------------------------------------------------
Connect-NcController : Could not load file or assembly 'System.Security.Principal.Windows, Version=4.1.1.0,
Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file
specified.
At line:1 char:1
+ Connect-NcController -Name <cluster_name> -OnTapi
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Connect-NcController], FileNotFoundException
+ FullyQualifiedErrorId : System.IO.FileNotFoundException,DataONTAP.C.PowerShell.SDK.ConnectNcController

Re: Failing Connect-NcController Command

Gino33 — Thu, 02 Apr 2026 08:47:08 GMT

Hello,

same here.

Did you resolved the problem?

Rgds.

Re: Failing Connect-NcController Command

TMADOCTHOMAS — Thu, 02 Apr 2026 12:52:31 GMT

I hate to say it, but the solution was to go back to version 9.16.1.2501. It works without issue. Must be some weird bug or issue in version 9.18.1 that isn't resolved yet.

Re: Failing Connect-NcController Command

ukauf — Tue, 28 Apr 2026 14:07:47 GMT

Thank you Thomas, where did you find 9.16.1? On NOW only 9.18.1 seems available.

Thank you

Re: Failing Connect-NcController Command

TMADOCTHOMAS — Tue, 28 Apr 2026 14:23:31 GMT

I actually just still had a copy of 9.16.1 from when I had installed it on another box. I don't know if NetApp Support can provide a copy of 9.16.1 or not?

Re: Failing Connect-NcController Command

ukauf — Tue, 28 Apr 2026 15:21:49 GMT

found out , you can download any version from the Powershell gallery:

https://www.powershellgallery.com/packages/NetApp.ONTAP/9.16.1.2501

Download the Offline nupkg file and the install it using nuget.exe:
https://www.nuget.org/downloads