How to request a certificate from a CA on a remote machine using PowerShell?

I am trying to invoke a PowerShell command on a remote computer. I'd like to request a certificate from an in-house CA. If I run the following command directly on the remote PC the operation is successful:

Get-Certificate -Template 1.3.6.1.4.1.311.21.8.9612972.3074733.7357589.1249582.14248002.117.5480590.5436517 -Credential $cred -Url ldap: -CertStoreLocation Cert:\LocalMachine\My

When I run the following command from a remote computer on the same domain I get the WIN32: 87 error shown below. I have googled the error extensively and cannot figure out the issue (fyi.. I have mitigated the double hop issue earlier in my script by using Enable-WSManCredSSP).

 $user = 'ABCCOmpany\<password>' #We are using the local machine's Administrator account
 $password = ConvertTo-SecureString '<password>' -asplaintext -force
 $credential = New-Object -typename System.Management.Automation.PSCredential -ArgumentList $user, $password
 $RequestAndReceiveCertificateSuccessful = Invoke-Command -Session $s -ScriptBlock{param($cred) Get-Certificate -Template 1.3.6.1.4.1.311.21.8.9612972.3074733.7357589.1249582.14248002.117.5480590.5436517 -Credential $cred -Url ldap: -CertStoreLocation Cert:\LocalMachine\My} -ArgumentList $credential

Error:

The parameter is incorrect. 0x80070057 (WIN32: 87 ERROR_INVALID_PARAMETER)
+ CategoryInfo          : NotSpecified: (:) [Get-Certificate], Exception
+ FullyQualifiedErrorId : System.Exception,Microsoft.CertificateServices.Commands.GetCertificateCommand
+ PSComputerName        : Agent3