Re-assign virtual COM port

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1 Problem

Any time the D.Module2.C6657 is powered on while the USB connection to the PC is used a new virtual COM port is assigned on Windows.

2 Solution

Re-assign virtual COM port. Follow these instructions:

Open "Control Panel - System and Security - System":


Click on Device Manager.

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Expand the COM port list and try to identify the COM port your D.Module2 is enumerted to

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Right click on the specific COM port and select Properties

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Select "Change settings"

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Change to "Port Settings" tab and click on "Advanced..."


In the following window choose a suitable COM port (in this case COM3)


Accept all windows with "Ok"

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