Enter-PSSession -ComputerName 139.219.135.45 -Port 5986 -Authentication Negotiate -Credential 'msstoret' -UseSSL -SessionOption (New-PSSessionOption -SkipCACheck -SkipCNCheck)

// HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp
Get-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp' -name "PortNumber"
Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp' -name "PortNumber" -Value 3389

Restart to take effect