COM port is the name of the serial port interface on IBM PC-compatible computers. It can refer not only to physical ports but also to emulated ports, such as ports created by Bluetooth or USB-to-serial adapters.
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This policy setting will determine whether the redirection of data to client COM ports from the remote computer will be allowed in the RDS session. By default, RDS allows COM port redirection. It can be used, for example, to use a USB dongle in an RDS session.
When not enabled, users can redirect data to COM port peripherals or map the local COM ports while using the Remote Desktop Service session.
Enable this object wherever’s possible.
If the status is set to Disabled, Remote Desktop Services always allows COM port redirection. If the status is set to Not Configured, COM port redirection is not specified at the Group Policy level. However, an administrator can still disable COM port redirection using the Remote Desktop Session Host Configuration tool.
RDS users won’t be able to access a client’s COM port peripherals such as USB dongles and Bluetooth.
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HOW TO CONFIGURE:
1. Press Windows Logo+R, type gpedit.msc, and press Enter.
2. Click the arrow next to Computer Configuration under Local Computer Policy to expand it.
3. Click the arrow next to Administrative Templates to expand it.
4. Click All Settings to show all group policy settings.
5. Scroll down to Do not allow COM port redirection and double-click on it to view the setting.
6. Ensure the policy isn’t Disabled and click OK. (Enabled must be selected).