Reply to vci 100 drop out problems

For some reason when i plug and play my vci, it seems to be working, however, sometimes it seems to "drop out" or lose power and flashes 3-4 times before the lights turn back on before doing it again every minute or so.
i updated traktor to 1.2.4 and in the preferences i have my vci selected in the "device" under controller manager section.

any advice or suggestions? thanks!!