Can't connect with Pro Plus 2 on Fedora 20

[John Williams]

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 at 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