Error obtaining Integration Services Catalog (SSISDB) connection in PowerShell

Hi,

I have a PowerShell script that (among other things) establishes a connection to the SSISDB catalog. In my environment, the connection is made successfully. The same script fails in a different environment. I suspect environmental conditions, but I'm not sure how to track this down.

The relevant script snippet is:

$global:cat = 0
$global:ISNamespace = ''
$global:ssis = 0
$global:con = ''
#--------------------------------------------
#set-psdebug -trace 2

 # Load the IntegrationServices Assembly           
 $loadStatus = [Reflection.Assembly]::Load("Microsoft"+           
 ".SqlServer.Management.IntegrationServices" +           
 ", Version=11.0.0.0, Culture=neutral" +           
 ", PublicKeyToken=89845dcd8080cc91")           

 # Store the IntegrationServices Assembly namespace to avoid typing it every time           
 $global:ISNamespace = "Microsoft.SqlServer.Management.IntegrationServices"           
 Write-Host "Connecting to server ..." -f cyan

 # Create a connection to the server           
 $global:constr = "Data Source=localhost;Initial Catalog=master;Integrated Security=SSPI;"           
 $global:con = New-Object System.Data.SqlClient.SqlConnection $constr

 # Create the Integration Services object           
 $global:ssis = New-Object $ISNamespace".IntegrationServices" $con

The last line fails on the target host (script is run local in both cases):

New-Object : Exception calling ".ctor" with "1" argument(s): "Failed to connect to server ."
At C:\Users\jpage\documents\scripts\check1.ps1:24 char:27
+     $global:ssis = New-Object <<<<  $ISNamespace".IntegrationServices" $con
    + CategoryInfo          : InvalidOperation: (:) [New-Object], MethodInvocationException
    + FullyQualifiedErrorId : ConstructorInvokedThrowException,Microsoft.PowerShell.Commands.NewObjectCommand

Any help would be appreciated.

Thanks