Questions & Answers

USB Power consumption problems with 32R and macbook pro.

+1 vote
asked Jan 12, 2018 in StudioLive Series III by joelfrazier (160 points)
Using my late 2016 macbook pro (2.9 ghz, 16GB ram) running high sierra.
StudioLive Series III 32R, Firmware version 1.6.13152
UC version

Connection is as follows:
StudioLive Series III 32R --USB--> --USB to USB-C adapter--> Macbook pro

I am experiencing a lot of intermittent problems with USB connectivity. Most often, I receive a message about "Unplug the device using too much power to re-enable USB devices". Once i receive this message, Universal Control no longer will find the 32R via USB.

This normally happens after the 32R has been disconnected from USB, and I try to reconnect it later. However, it has occurred on system startup as well, and it has occurred while connected to the 32R via USB, causing a disconnect.

Sometimes it seems to be resolved with a restart, but will appear again if the 32R is disconnected and reconnected. Once this occurs, I haven't found a way to resolve it aside from restarting the computer, which only works some of the time.

I have tried:
-Resetting the SMC. Seems to have worked temporarily, but i still received the message after this.
-Placing a powered USB hub between the 32R and my macbook. This didn't work at all. The macbook didn't recognize the 32R at all.

This seems like a driver issue, and it has even crashed my macbook on more than one occasion. I am nervous about using the macbook to record audio for fear of a disconnect.

Has anyone experienced this or does anyone have any insight?


Joel Frazier

1 Answer

0 votes
answered Jan 12, 2018 by Michael Martin (88,980 points)
Best answer
Not sure this is the driver causing the issue. Appears to be more related to your system / connection.

Please contact Technical Support via Support Ticket. This is an issue that will need to be investigated by them.