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
rdew...@rochester.rr.com
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