[Elecraft] Trying to get on FT-8 with my KX2

[Tommy]

    Hi folks,

      Trying to get WSJT-X going with FT8 and my new KX2. I keep getting 
a "/Hamlib error/: IO /error/ while opening connection to rig" error. I 
have the right cables and jumper module in the signalink, Radio 
selection is KX3 (it's supposed to work), USB and VOX is selected and 
VOX is ON. 8 bits, one stop and handshake NONE. No matter what I do I 
still get the error.

Any ideas please? It's driving me nuts! This shouldn't be this 
difficult. Any help appreciated.

Tom - KB2SMS