Using PowerShell Enter-PSSession when your computer isn't on the domain.

Quite often when i'm at a customers site I need to work on their servers. Each time I go to site I don't join my laptop to the customers domain. The problem with this is that when you use the Enter-PSSession command you get an error message about the fact that your computer is not joined to the domain that the server is.

This also presumes you have enabled PSRemoing on the destination host with this command:

Enable-PSRemoting -Force

Here is the work around; Enter the first command on you computer once only. This tells your computer to trust the identify of any remote computers. This should not be done on non technical users computers as the security implications are obvious.

Set-Item WSMAN:\Localhost\Client\TrustedHosts -Value * -Force

The command below will connect you to the computer of your choice, you will need change the IP address or substitute a computer name, you will also need to change the domain and username to an account that is active on the server.

Enter-PSSession -ComputerName 0.0.0.0 -Credential domain\username -Authentication negotiate

Troubleshooting intermittent pings

Troubleshooting intermittent pings can be a pain in the rear. Here are some steps I have used to isolate the issue.
I am working with a customer who is having a Hyper-V cluster, after getting the Network Adapters sorted out I noticed the RDP connectivity to the server was poor. A ping to the default gateway revealed high ping latency and a good handful of request time-outs.  

• Updated the drivers - No change.
• Changed the CAT6 cable - No change.
• Disabled VMQ - No change.
• Plugged my laptop in to the same cable - Same issue, Bingo! This turned out to be a red herring. I updated my drivers and plugged the power in and that resolved the laptop ping issue.
• Tried another laptop on the same cable - It was fine, 1ms.
• Tried another 1GbE NIC to eliminate the LBFO driver - still the same.
• Tried a 10GbE - Seems to be stable, odd.
• Tried another switch - Seems to be stable, odd.
• Flatted the server, installed Windows 2012 R2 again and test the ping, it was fine, odd!
• Repeated all the configuration steps one at a time each time testing the ping, still OK.
• Joined the domain, BAM! Pings all over the shop.
• Tried safe mode, Seems to be stable 1ms!
• Removed the server from the domain, seems to be stable 1ms.
• Added the server back to the domain, pings latent and intermittent again.
• Stop the Base Filter Engine (stop-service BFE - force), seems to be stable 1ms.
• Uninstall the Broadcom driver and use the OOB driver from Microsoft, seems to be stable 1ms.

Update: After creating some VMs the problem moved inside some VMs. The solution was to change the Broadcom 1GbE NICs for Intel x350-t NICs.

Hardware, Dell PowerEdge R720, 1GbE & 10GbE Broadcom NICs. Switch HP 5400