When you connect to a computer (either a Windows client or Windows Server) through the Remote Desktop client, the Remote Desktop feature on your computer “hears” the connection request through a defined listening port (3389 by default). You can change that listening port on Windows computers by modifying the registry.
1. Start the registry editor. (Type regedit in the Search box.)
2. Navigate to the following registry subkey: HKEY_LOCAL_MACHINESystemCurrentControlSetControlTerminal ServerWinStationsRDP-Tcp
3. Find PortNumber
4. Click Edit > Modify, and then click Decimal.
5. Type the new port number, and then click OK.
6. Close the registry editor, and restart your computer.
The next time you connect to this computer by using the Remote Desktop connection, you must type the new port. If you’re using a firewall, make sure to configure your firewall to permit connections to the new port number.
You can check the current port by running the following PowerShell command:
Get-ItemProperty -Path 'HKLM:SYSTEMCurrentControlSetControlTerminal ServerWinStationsRDP-Tcp' -name "PortNumber
For example:
PortNumber : 3389 PSPath : Microsoft.PowerShell.CoreRegistry::HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlTerminal ServerWinStationsRDP-Tcp PSParentPath : Microsoft.PowerShell.CoreRegistry::HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlTerminal ServerWinStations PSChildName : RDP-Tcp PSDrive : HKLM PSProvider : Microsoft.PowerShell.CoreRegistry
You can also change the RDP port by running the following PowerShell command. In this command, we’ll specify the new RDP port as 3390.
To add a new RDP Port to the registry:
$portvalue = 3390 Set-ItemProperty -Path 'HKLM:SYSTEMCurrentControlSetControlTerminal ServerWinStationsRDP-Tcp' -name "PortNumber" -Value $portvalue New-NetFirewallRule -DisplayName 'RDPPORTLatest-TCP-In' -Profile 'Public' -Direction Inbound -Action Allow -Protocol TCP -LocalPort $portvalue New-NetFirewallRule -DisplayName 'RDPPORTLatest-UDP-In' -Profile 'Public' -Direction Inbound -Action Allow -Protocol UDP -LocalPort $portvalue
