Irx6 Multiprotocol burnt my trainer port

Thos is the second Fsi6 this has happened with. One day all good, next day the multiprotocol won’t bind to the FsI6. After this happens the computer won’t connect to the FsI6 either. The multiprotocol shows power but no flashing light when i turn on the FsI6.
Anyone have a simular issue?
The irx6 multi has a ppm point anyone have success hooking ppm from multiprotocol into Fsi6?