Why does this use of DSC File Resource using shared folder only succeed once? - windows-server-2012-r2

Question

I am testing the use of the DSC File resource for copying a directory of files from a shared folder to another machine.
My problem is that this works once but running the same code a second time fails. If I restart the target machine the script will again run correctly but fail a second time.
Can anyone tell me why this is and whether I need to be doing something differently?
The machines I am using are called:
"S1" => Server 2012 R2 (This has the shared folder and user setup for read access)
"S2" => Virtual Server 2012 R2 running on S1 (This is the target machine)
The script I am running is this:
$ConfigurationData = #{
AllNodes = #(
#{
NodeName="*"
PSDscAllowPlainTextPassword = $true
}
#{
NodeName = "S2"
}
)
}
Configuration Test {
param (
[Parameter(Mandatory=$true)]
[PSCredential]$credential
)
Node $AllNodes.NodeName {
File DirectoryCopy {
DestinationPath = "C:\Shared\Files"
SourcePath = "\\S1\Shared\Files"
Ensure = "present"
Credential = $credential
Type = "Directory"
Recurse = $true
}
}
}
$username = "dscUser"
$password="dscPassword!"|ConvertTo-SecureString -AsPlainText -Force
$credential = New-Object System.Management.Automation.PsCredential("$username",$password)
Test -OutputPath "C:\Scripts" -ConfigurationData $ConfigurationData -Credential $credential
Start-DscConfiguration -ComputerName S2 -path "C:\Scripts" -Verbose -Wait
The output of running this twice are this:
PS C:\repo> C:\Scripts\Test.ps1
Directory: C:\Scripts
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a--- 16/10/2015 11:12 1646 S2.mof
VERBOSE: Perform operation 'Invoke CimMethod' with following parameters, ''methodName' = SendConfigurationApply,'className' = MSFT_DSCLocalConfigurationManager,'namespaceName' = ro
ot/Microsoft/Windows/DesiredStateConfiguration'.
VERBOSE: An LCM method call arrived from computer S1 with user sid S-1-5-21-1747786857-595474378-2516325245-500.
VERBOSE: [S2]: LCM: [ Start Set ]
VERBOSE: [S2]: LCM: [ Start Resource ] [[File]DirectoryCopy]
VERBOSE: [S2]: LCM: [ Start Test ] [[File]DirectoryCopy]
VERBOSE: [S2]: [[File]DirectoryCopy] Building file list from cache.
VERBOSE: [S2]: LCM: [ End Test ] [[File]DirectoryCopy] in 0.2500 seconds.
VERBOSE: [S2]: LCM: [ Start Set ] [[File]DirectoryCopy]
VERBOSE: [S2]: [[File]DirectoryCopy] Building file list from cache.
VERBOSE: [S2]: LCM: [ End Set ] [[File]DirectoryCopy] in 0.2660 seconds.
VERBOSE: [S2]: LCM: [ End Resource ] [[File]DirectoryCopy]
VERBOSE: [S2]: LCM: [ End Set ]
VERBOSE: [S2]: LCM: [ End Set ] in 0.6720 seconds.
VERBOSE: Operation 'Invoke CimMethod' complete.
VERBOSE: Time taken for configuration job to complete is 1.59 seconds
PS C:\repo> C:\Scripts\Test.ps1
Directory: C:\Scripts
Mode LastWriteTime Length Name
---- ------------- ------ ----
-a--- 16/10/2015 11:13 1646 S2.mof
VERBOSE: Perform operation 'Invoke CimMethod' with following parameters, ''methodName' = SendConfigurationApply,'className' = MSFT_DSCLocalConfigurationManager,'namespaceName' = ro
ot/Microsoft/Windows/DesiredStateConfiguration'.
VERBOSE: An LCM method call arrived from computer S1 with user sid S-1-5-21-1747786857-595474378-2516325245-500.
VERBOSE: [S2]: LCM: [ Start Set ]
VERBOSE: [S2]: LCM: [ Start Resource ] [[File]DirectoryCopy]
VERBOSE: [S2]: LCM: [ Start Test ] [[File]DirectoryCopy]
VERBOSE: [S2]: [[File]DirectoryCopy] An error occurs when accessing the network share with the specified credential. Please make sure the credential is c
orrect and the network share is accessible. Note that Credential should not be specified with the local path.
VERBOSE: [S2]: [[File]DirectoryCopy] The related file/directory is: \\S1\Shared\Files.
A specified logon session does not exist. It may already have been terminated. An error occurs when accessing the network share with the specified credential. Please make sure
the credential is correct and the network share is accessible. Note that Credential should not be specified with the local path. The related file/directory is: \\S1\Shared\Files.
+ CategoryInfo : NotSpecified: (:) [], CimException
+ FullyQualifiedErrorId : Windows System Error 1312
+ PSComputerName : S2
VERBOSE: [S2]: LCM: [ End Set ]
LCM failed to move one or more resources to their desired state.
+ CategoryInfo : NotSpecified: (root/Microsoft/...gurationManager:String) [], CimException
+ FullyQualifiedErrorId : MI RESULT 1
+ PSComputerName : S2
VERBOSE: Operation 'Invoke CimMethod' complete.
VERBOSE: Time taken for configuration job to complete is 3.027 seconds
Any help with this is appreciated as its driving me nuts.
Thanks.

Answer 1

I (think) I have found the answer.
When specifying the username I should have used 'S1\dscUser' instead of 'dscUser'.
These machines are not in a domain.