JPac connector stopped working

[arcade_beginner]

Hi all,

I bought a 4 player ready arcade cabinet, which came with all the connectors for it to work. I wanted to build my own pc to work within the cabinet and did so. There were a couple of issues where the coin button for P1 and P2 were the same key along with a couple of conflicts with players 3&4. When I was trying to fix this I downloaded winIPAC V2, ever since installing this P3 & P4 buttons no longer register.

I've since plugged the JPAC board for P3 & P4 into another machine and ran winIPAC V2, a message: No board is shown. If, however I unplug the usb winIPAC closes as if it could see there was a JPAC there.

In windows JPAC is shown in the devices screen. Have I broken it or is there a way to reset it?

Thanks in advance,

Gary