Disconnect the client from the WinRM service on a remote computer.
Syntax Disconnect-WSMan [-ComputerName string] [CommonParameters] Key -ComputerName string The computer from which you want to disconnect. A fully qualified domain name, a Net BIOS name, or an IP address. Use the local computer name, localhost, or a dot (.) to specify the local computer. The local computer is the default. When the remote computer is in a different domain, use a fully qualified domain name. You can pipe a value for ComputerName. Note: You cannot disconnect from the local host, however, if a separate connection is made to the local computer (for example, by using the computer name), you can remove that connection with Disconnect-WSMan.
If you saved the WS-Management session in a variable, the session object remains in the variable, but the state of the WS-Management session is "Closed".
Delete the connection to the remote server64 computer:
PS C:\> Disconnect-WSMan -computer server64
“All the disconnected people I know are trying to be something they are not, to do something they cannot do” ~ David Gayson
Connect-WSMan - Connect to the WinRM service on a remote computer