Hi there, I'm having the same problem as described by the OP in standalone mode (I haven't even tried as a VST in my Cubase 7 yet). The software starts, the Spark LE starts and goes into Spark mode, I can go to Audio Midi settings and run "Test" to hear the tone, but every time I try to connect to the hardware I get the message "Connection Failed".
I have checked and the Spark LE is NOT selected on the MIDI output (nothing is checked on MIDI in/out). Here's more info and what I've tried:
I'm running a desktop PC with Windows 7 Pro 64, 4 GB RAM. I first installed Spark 1.6 from the disc, then updated to 1.7, then uninstalled and re-installed 1.7.
I've tried several different USB ports on the computer. I've toggled the audio source (set on Windows audio) to other options and then back again. I've added the driver for a USB composite device alongside with the SparkLE (no driver found) and then removed that.
Just to test, I also downloaded the program to my Surface tablet, running Windows 8, and connected the Spark LE there with no problems! It worked like a charm immediately. (I can't continue using it on the Surface because it is a device from work).
I would appreciate any help.
By the way....I submitted a tech request through Arturia and heard nothing back after the initial confirmation email. Then I tried to track my case number on the link given in the email and the link did not work - it took me to an error 404 page. Going directly to http://www.arturia.com/fogbugz
also led nowhere.
On another page of this forum I found the link http://www.arturia3.com/fogbugz/
. However, entering my case's tracking ticket gave me the message "No case was found associated with the ticket: 139331_GHDXUALY".
Not great tech support, I must say. It looks like the customer service is much better on this forum.