[App_rpt-users] usb

I can not get my radio to work through usb on my allstar node. I get erroe messafe says Usb not active.How do I get it active? I tryed every file i can think of and do not see anything wrong.Can anyone give me the command to activate my usb device. I have v=been messing with this for weeks with no luck.My node works otherwise but I can not hook up a radio to use it I have to link through ecco link to use my node.I think if i could get the usb device to go active It will work.