Problem: I can't program Kenwood TM-G707 using CHIRP and the FTDI cable from valley-ent.com

When running the "Download from Radio" menu command, I am getting stopped by an error message in CHIRP:

An error has occurred

could not open port COM3: [Error 5] Acccess is denied

I am experienced with CHIRP and the Kenwood TM-G707 is listed as a supported radio. I have had success with Baofeng radios and Yaesu radios with both BTech and valley-ent.com FTDI cables. Valley-ent sent me a replacement cable...same error message.

I confirmed the Com port assignment in Device Mgr (Win 10 and 7).

I have tried installing the latest drivers and have tried installing the old 2007 drivers.

Have experimented w. 3 different Win 10 computers and one Windows 7 machine.

HELP, please and thank you.

- Mike Mc -