Error – Invalid Port, Port Already Open

Cause 1 - Keyspan not software not installed

Solution 1 - Install Keyspan software Contributions Hardware Installation



Cause 2 - Port is not useable on the Keyspan adapter or the serial port

Solution 2 - Keyspan/USB Connection - Change Com Port in Keyspan Software. COM3 & above recommended.
                     Serial Connection – Change COM port in Windows Device Manager. COM1 recommended.



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Contributions App Install Troubleshoot guide.pdf

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