Hi, Firstly, thanks for your work on this very useful software! But, I've tried using the vtpro and universal clients to connect to my Pro Plus 2 on Fedora 20, but get the undesirable response below. I've followed the instructions to execute: modprobe ftdi_sio vendor=0x0403 product=0xF460 and also put options ftdi_sio vendor=0x0403 product=0xF460 in /etc/modprobe.d/options The device is owned by root, and has group dialout. My non-root user (john) belongs to this group. Is there anything else I can do to track down the cause of this error? (And yes, my Pro Plus 2 displays "PC" and executes the 120 second countdown.) Thanks again, John ============================================================ [john@lounge Downloads]$ ./universal -b vtpro /dev/ttyUSB0 DATETIME 2014-09-30T07:34:17Z (1412062457) VERSION 0.5.0-devel (6845d9b77c81185a50a855c73a9c9f7989ad434c) Opening the device (Oceanic Versa Pro, /dev/ttyUSB0). ERROR: Failed to receive the answer. [in ../../source/src/oceanic_vtpro.c:189 (oceanic_vtpro_init)] ../../source/examples/universal.c:681: Error opening device. Result: Timeout