External Gotek disc missing

[robertix]

Hello, I'm trying to add an Gotek FlashFloppy to my CPC6128. I connected it to the external port with the cable from hobbyretro. The drive is working and I can select a dsk file but when I try to read it I get "disc missing". Is there a problem with the Gotek, the configuration or the CPC? Wrong cable? Thanks for any hint. Robert

[eto]

Check the S0/S1 jumpers of the Gotek. I don't remember which one is right when connecting the Gotek externally but you can just switch them and try again. 

[McArti0]

Wrong jumper setting (set A instead of B). Cable in gotek upside down.

[robertix]

Thanks for your reply. I tried S0 and S1. It doesn't work  

[eto]

Try the 34pin cable upside down.