Tacx software V4.8 in combination with T2028

[Timiet]

High guys I m new here, amateur biker both race (Scott) and MTB (Sensa)

I have an issue......
Tacx software V4.8 with working license.

Laptop not connected to internet (stand alone configuration)

I get no connection with my Tacx Genius trainer:

I use the T2028 dongle. This one seems to work (green led is on)
The T2028 is within 1 meter from the Genius, so that seems OK to me.

When I'm installing the Tacx software I've to choose an interface:
Options are:
Genius
( and also Vortex, Bushido, T1932 VR, T1904 i-Magic VR and T1942 Fortius)

I've choosen Genius but there it will not connect. Tried many times.
Tried also the other interfaces types, doesn't work either.

Suggestions? Thanks in advance!