Problems recording Midi in Garage Band with a Roland FP-4 piano

I have been having issues with recording midi on garage band. I have a roland fp-4 e-piano and I can't get a signal when I press record in garage band. it says one midi input detected. and I also tried to send the signal from channel 1 of my piano... I have a "midi in and midi out-usb" cable.

I tried configuring the Midi-audio setup utility but that didnt seem to help either... I also tried changing the midi preferences in Garageband but that didnt help either. And I also used software instrument and the real instrument. ( I know its supposed to be software instrument) but both didnt work...

Anyone have an idea, what is wrong?