[Elecraft] KIO3B usb com port not communicating

[Rajiv Dewan]

Hello,

   I have KIO3B (USB interface) in my K3.  It was working well. Single 
USB for audio, and CAT.

Suddenly, now the CAT part is not working.  Here are some aspects:
* RS232 in K3/Config shows USB
* Serial port 1 shows up in device manager on the windows computer when 
the USB is plugged in.  The sound codecs are working.
* Nothing communicates with the K3 CAT any more (K3 utility, and logging 
programs do not see the K3 on the com1.)
* I tried it on a new laptop with a fresh USB cable.  Exactly the same 
issue.

Any help appreciated.

Raj, N2RD
K3 sn 170

--
Raj Dewan, N2RD
rdewan1 at rochester.rr.com