[Elecraft] KIO3B woes

[Steve Ward]

Hi all, so I just got back in town last night, and I wanted to get my 
new KIO3B installed in s/n 1544 so I could give it a run during 7QP.  
Assembly went smoothly enough and the "Y" cable to the P3 seems to be 
doing its thing just fine.

But my Windows 10 computer isn't talking to the K3 or the P3 anymore.  
Device manager sees both the sound card and the serial port (assigned to 
COM5) but neither the K3 utility or the P3 utility (both latest 
versions) can talk with their respective equipment. They just cycle 
through all the baud rates trying to make a connection (I checked and 
both K3 and P3 are set to 38400).

What have I missed?  I checked all the firmware revisions before 
starting and everything looks just fine.  I double checked the position 
of the slide switch on the I/O board before closing the radio up.  Any 
ideas?  I would hate to have to tear it all apart again tonight just to 
get on the air for the contest tomorrow, but it's starting to look like 
that's my answer.  Please copy me on any replies because I get the 
digest version of the reflector and it'll be a while before another one 
comes through.

Thanks everyone!

73,
Steve
AD7OG