MIDI Express XT USB Disconnecting / Mac Pro / Yosemite

[JSmith1234567]

Hi.

I have a new Mac Pro (black coffee-can style) and my MIDI Express XT keeps disconnecting a few times a day.

It usually happens after a few hours of work in DP.

I can get it to reconnect by hitting "re-scan" in AudioMidi Setup.

I have tried;

1) Different cables.

2) Connecting it through a USB-2 hub.

3) Connecting it direct.

4) Connecting it through a USB-3 hub.

5) Reinstalling Motu MIDI drivers, updating MIDI Express XT Firmware, resetting my XT.

6) Trying a different XT (I have a spare).

7) Trying different ports on the Mac Pro (it has four).

Still the same problems.

I'm just using the latest DP in Yosemite, and VE Pro as a Kontakt server, all on the same computer.

Any thoughts?

HELP!

[mikehalloran]

Is it happening after your Mac goes to sleep?

[JSmith1234567]

Thanks!

I have sleep turned to "never".

[mikehalloran]

Have you replaced the C2032 battery?

http://www.motu.com/techsupport/technot ... 5046010606

[JSmith1234567]

Hey!

I'll DEFINITELY try that.

It's not losing settings, actually the total connection, but it's worth a shot.

Thanks for recommending that!

[mikehalloran]

Hey!

I'll DEFINITELY try that.

It's not losing settings, actually the total connection, but it's worth a shot.

Thanks for recommending that!

It's normally everybody's first recommendation but you don't see that many in the field anymore. I had forgotten the battery even though I have an MTP AV that uses the same C2032.

A weak battery is worse than no battery. I learned that a long time ago. So here's hoping...

[matt1]

Hi.

I have a new Mac Pro (black coffee-can style) and my MIDI Express XT keeps disconnecting a few times a day.

It usually happens after a few hours of work in DP.

I can get it to reconnect by hitting "re-scan" in AudioMidi Setup.

I have tried;

1) Different cables.

2) Connecting it through a USB-2 hub.

3) Connecting it direct.

4) Connecting it through a USB-3 hub.

5) Reinstalling Motu MIDI drivers, updating MIDI Express XT Firmware, resetting my XT.

6) Trying a different XT (I have a spare).

7) Trying different ports on the Mac Pro (it has four).

Still the same problems.

I'm just using the latest DP in Yosemite, and VE Pro as a Kontakt server, all on the same computer.

Any thoughts?

HELP!

Did you ever solve this?

My new XT is constantly disconnecting..

[dave pine]

this was hapening to me a while back, replaced the battery in the xpress xt solved it.