How do I redirect a COM port in Remote Desktop?

First make sure that port redirection option is enabled in the Remote Desktop Connection client:

  1. In the Remote Desktop Connection window, click Options.
  2. On the Local Resources tab, under Local devices, make sure that “Ports” is checked.

What ports do I forward for RDP?

The port responsible for the Windows Remote Desktop service is 3389, i.e., you need to forward it to port 3389.

Does RDP use COM port?

Remote Desktop Protocol (RDP) is a Microsoft proprietary protocol that enables remote connections to other computers, typically over TCP port 3389. It provides network access for a remote user over an encrypted channel.

How do I change my default port from 3389 to 3390?

Double-click or right-click on the “PortNumber” registry subkey, select the decimal base and type the port number of your choice (the default port is 3389, in this example, we selected port 3390). Click on “Ok” to save your selection.

What is COM port redirection?

COM Port Redirector (Serial to Ethernet Connector) is a software tool that enables you to redirect up to 500 serial port devices over network (Internet or LAN). A single COM port can be accessed by multiple computers in the network, no matter where the port is actually located.

Do not allow COM port redirection is set to Enabled?

Configure the policy value for Computer Configuration -> Administrative Templates -> Windows Components -> Terminal Services -> Terminal Server -> Device and Resource Redirection “Do not allow COM port redirection” to “Enabled”.

Does RDP need port forwarding?

By default, Windows Remote Desktop will only work on your local network. To access Remote Desktop over the Internet, you’ll need to use a VPN or forward ports on your router.

Does RDP use UDP 3389?

RDP servers are built into Windows operating systems; an RDP server for Unix and OS X also exists (for example xrdp). By default, the server listens on TCP port 3389 and UDP port 3389. Microsoft currently refers to their official RDP client software as Remote Desktop Connection, formerly “Terminal Services Client”.

How do virtual COM ports work?

A USB Virtual COM Port allows you to use a USB Interface to talk to serial devices. This essentially gives users a simple pathway to communicating to peripherals using software development tools that support serial communications, a relatively common standard is most programming languages.