Are you looking to connect remotely to a computer and run powershell commands. Below is a simple one liner that will connect to a computer and get the ipconfig /all and display it on your computer.
If it doesn’t work, you may have to enable WinRM on the remote computer. This can be done with group policy or simply typing Winrm quickconfig at the command prompt on the computer you want to connect to. This has to be done before hand so there may be some prep involved but when you have Winrm enabled on all your computers, you can connect with powershell and run all sorts of commands.
Here is
Invoke-Command -Computer <EnterComputerNameHere> -ScriptBlock {ipconfig /all} |