New-PsDrive Remote copy from DFS share errors: A specified logon session does not exist

Question

So to recap the situation: I am at one computer trying to run powershell using enter-pssession computername, then from the remote session, run the logic below:

Answer 1

From the looks of things it appears that you are experiencing the dreaded "Double-Hop". If you only what to remote to a few computers it's pretty easy to setup the "fix" for the "Double-Hop". On the computers that you want to remote to you need to run the following commands:

Enable-PSRemoting

Enable-WSManCredSSP Server

Then on the computer you want to remote from you need to run the command:

Enable-WSManCredSSP Client –DelegateComputer [<FQDN of the server>][*]

In place of the fully qualified domain name you can put a * instead. That will allow you to send your credentials to any computer (that could be dangerous).

Now how would you work this into a script? There is a command called Invoke-Command. If you look at the parameters of Get-Help Invoke-Command -Parameter *, you'll see that it take a Credential and a Authentication. Here's how you would run a command on multiple computers.

$MyCred = Get-Credential
Invoke-Command -ComputerName Computer1,Computer2 -Credential $MyCred -Authentication Credssp -ScriptBlock {Get-ChildItem $args[0]} -ArgumentList '\\Server\Share' -ErrorAction SilentlyContinue

Now if you'll be remoting onto many machines and you know how to use Group Policy. I'd recommend setting up PSRemoting and enabling WSManCred with the Group Policy.