[Elecraft] KX3 COM Port Not Working

[N8NCR]

Unfortunately I think I found the problem. A USB 3.0 port may have fried
both KXUSB cables. I found a 3rd KXUSB cable I had hiding in storage,
hooked it up to the KX3 and laptop and it worked immediately.

For anyone that got to this thread via search engine, here are some
symptoms:

Elecraft KX3 Utility v1.13.8.24

Activity Log:
Attempting to contact KX3 on port COM8 at 38400 bit/s
Attempting to contact KX3 on port COM8 at 19200 bit/s
Attempting to contact KX3 on port COM8 at 9600 bit/s
Attempting to contact KX3 on port COM8 at 4800 bit/s

On Tue, Apr 5, 2016 at 11:22 PM, N8NCR <ncrollo+elecraft at gmail.com> wrote:

> I have a brand new KX3, kit build. I had a hard time getting the KX3
> utility to connect to the radio and its being rather picky. I was able to
> get it to connect once automagically and after that it hasn't worked again.
>
> I've tried:
> 2 different KXUSB cables
> Different USB ports
> Different computers (Win7/Win10)
> Different baud rates
> Setting baud rate in device manager to corresponding rate on radio
> Updating drivers
> Restarting computer/KX3
>
> I'm plugging in the ACC1 port and running firmware 2.38 and out of
> troubleshooting steps. Any ideas?
>