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Test Serial Port cannot select COM 4, only 1 & 2

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Test Serial Port cannot select COM 4, only 1 & 2 what's up with not being able to select the current COM Port? I don't have a 1 or 2 COM Port. USB Serial adapter automatically configures to COM 4. My computer is controlled by an admin so I cant change it

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No avatar answered by (118k points)

The issue may be related to the Windows settings. It is possible that the system is set to only recognize COM ports 1 and 2, and not 4. If the computer is controlled by an administrator, try asking them to adjust the settings to allow for the use of the COM 4 port.

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