It is very likely you need the correct device driver.
You need a device driver for an ICOM IC-7100, IC-7200, IC-7300, IC-7600,
IC-7610, IC-7850, IC-9100, PCR2500, Kenwood TS-990S, TS-590S, Elecraft KX3,
K3S, Yaesu FTdx3000, FT-891, FT-991 or Ten-Tec Eagle USB direct connect built
in USB/Serial
Which OS? Sounds like your serial port has changed, try (re)selecting the
(proper) port.
73, Willie N1JBJ
> On Aug 20, 2022, at 3:08 PM, Michael Mertes via wsjt-devel
> wrote:
>
> I am receving the following error messages from WSJT-X for Icom IC-7100 Rig
> Setup:
>
> Hamlib error: IO err
