If you have a 3rd party FTDI driver installed, that may be part of the
problem. MacOS has had FTDI drivers since at least 10.12. I also would
seriously suggest updating to at least the last update of 10.13; 10.14
would be better.

73,
Chuck, AA3CS

— Engineer:  "If it ain't broke I haven't messed with it enough yet."

On Sat, Jan 23, 2021, 11:50 Richard <[email protected]> wrote:

> Working hard to wean my K3s off a SignaLink and connect it directly via a
> standard A/B USB cable. Results have been frustrating but encouraging. The
> particulars are these.
>
> Mac mini
>    Late 2012
>    2.5 GHz Intel Core i5
>    8 GB RAM
>    Running 10.12.6 Sierra
>
> K3s 100
>
> I’m going to try replacing the probably out of date FTDI driver with a new
> driver from SciLabs. Do I need to remove the old FTDI driver before
> installing the new SciLabs driver?
>
> NOTE: I have a grand old IC-706MkIIG now also running WSJT-X 2.2.2 through
> a SignaLink with absolutely no problems. Assuming this setup uses the old
> FTDI driver, dare I risk messing up that setup by changing to the new
> SciLabs driver? I really don’t want to do that.
>
> Replies here are fine but please CC me at [email protected]
>
> Cheers!
>
> Richard Kunc - W4KBX
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