Port ok, interface ok. But once pluged into the car interface not found. : r/Vcds
Vcds interface not found! | Audi-Sport.net
HEX-CAN USB Interface not found | Ross-Tech Forums
Interface not found, tried reinstalling few times, only on 17.8.1 version got different message. Need to update firmware from 1.94 to 1.96,but it failed to update. : r/Vcds
Ross-Tech: VCDS: USB Driver Installation for Windows XP