Right click Start - Select Device Manager - Expand Ports - Right click port in 
question - Properties -Port Settings Tab -Advanced - Change port number.  You 
will have to set one to say port 5 first and the change them as needed.
    On Wednesday, December 6, 2023 at 02:37:20 PM CST, Will Gray via BVARC 
<bvarc@bvarc.org> wrote:  
 
 I have two ICOM 7300 radios that I use in MARS and SHARES.  The radios are 
controlled via a single USB cable from the Windows 11 Pro computer.  The 
problem is that the computer does not correctly identify the COM port.  One 
radio USB port is  COM3 and the other radio is COM4.  I have two computers that 
read them properly BUT a third desktop computer reads them wrong, that is COM3 
reads as COM4 and the opposite on connection to the second radio.  The radios 
are fine.  This is a computer problem.  The driver (Silicon Labs CP210x USB to 
UART Bridge, their universal windows driver).
Please pass this along to one of our Windows 11 gurus.  I don't know what to do 
to resolve this problem.
Will Gray,  KB7QL
-- 
431 Forest CircleRuston, LA 71270-2642C:318-265-2976 
(text)wpgraypm@gmail.comKB7QL
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