Hubert Müller

Hey i am having an issue with cakewalk. I want to sequence external gear (volca fm)using a midi cable. I have the midifile running in cakewalk and set cakewalk to be the midihost. the drivers for the usb to midi cable are correctly installed and cakewalk finds the midi out If i start stop the sequence the internal volca starts playing so its in sync but cakewalk doesn't send the midi notes. i don't know how to change it, i got it to send midi notes yesterday but today it won't work please help