Hello all,

I've had my Firestudio Mobile for 3 years now. Starting a little over a year ago (I think; it was previously used in a very clean/isolated electrical environment), the interface disconnects whenever there's an electrical impulse in the house's circuit. For example, whenever the refrigerator kicks in, the interface disconnects. If I hit certain light switches, the interface disconnects. Sometimes, the interface disconnects for no discernible reason.

By 'disconnects,' I mean that the computer I have the interface connected to no longer detects that it's there. The LED indicator goes dark for a moment, then starts flashing red and blue. The only way to fix the issue is to unplug and replug the firewire cable of the interface back into my computer; even then, Ableton Live doesn't re-detect the interface and must be restarted, and Logic may or may not re-detect it. Irrespective of that, neither DAW re-detects the Mobile's MIDI capabilities; the only workaround for this is opening Logic and going to "Reset All MIDI Drivers" in the Preferences->MIDI menu; it can't be fixed in Ableton.

This issue has persisted across three different locations, with each apartment having different wiring. This leads me to believe that the unit is at fault.

Another issue, that I'm uncertain if it's correlated, is that when the mobile is not connected to a computer via firewire, it sends a consistent pulsing to its audio outputs, with the blue LED flashing dimly with each pulse.

I tried purchasing a Livewire power conditioner to hopefully solve the issue-
http://www.amazon.com/Live-Wire-Conditi ... 007CTY18Y/
It has not.

I'm not really sure where to turn now. One consideration is to get an Uninterruptible Power Supply; might this solve the issue? My worry there is that a decent UPS is a fair chunk of change, and I don't wish to purchase one if it won't solve the issue.

The second consideration is to send it to PreSonus for repair. I'm skeptical about doing this; it's $85, which is a nice chunk of my budget as a student. My worry here is that it's a defect of the product design itself, and therefore receiving one in factory condition will not solve the issue. Has anyone else experienced this problem?

My third consideration is to simply save up and purchase a better interface.

These issues are very frustrating, and constantly interrupt my workflow when trying to work on my music. I'd appreciate any thoughts as to what a solution may be, or what you think I should do!

Thanks,
~Tristan