[Elecraft] No serial connection to Mac with Keyspan K3

[robertok]

I'm having issues with connecting my Mac with my K3.  I used to be able to do
it without much fuss.  I decided my Keyspan went caput, so I bought another
one.  

The green light on the Keyspan (19HS) is solid when plugged into the RS232
port on the K3 when the K3 is on, but the K3 Utility shows no connection
when I test connection ("K3 is not responding").  The Keyspan shows up in
Port>Choose Serial Port Connection.  So, I know it is connecting and
sending/receiving data from the Mac.

On the K3, in Config>RS232 I have it set to 38400b (but I tried slower ones,
too).  

I tried re-booting the Mac and powering the K3 on and off, etc., in all
possible permutations.

I think my MU version is 4.67 (I've been idle for a while).  The K3 Utility
is version 1.14.10.24.  I also tried connecting using MacLoggerDX with no
luck.

Mac OS 10.10.1

Any help will be most appreciated!

RobertoK
KY1RK



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