Logic Pro And Motu Traveler Issue, No audio after long periods of use Options

[slackhammond2]

This is a wierd one. I've been using this setup on a live TV show running click to band rhythm section and additional sequencing to two other stereo pairs out of the Traveller. It can be fine all day - 5/6 hours - then when it comes to the broadcast, I can check the track several times - all is fine - then at some point, it will just not send audio from the outputs of Logic, and the Traveler shows and outputs nothing. Re-launching Core Audio does not resolve the issue, nor does re-booting the Traveler, factory resetting the Traveler, or re-launching Logic Pro. I have re-created the issue at home by leaving the configuration on overnight. In the morning the issue occurs - it appears to be a time thing, not dependant on whether the program is being used or not i.e. it can happen during use as well as after a long period of inactivity. I have not tried previous versions of logic to work around this yet, but I used to use 7.0.1 with MOTU Firewire driver 1.2.5 (2005-05-10) before and don't recall the same issue. This issue occurs in Logic 7.1.1 with MOTU drivers 1.2.5 (2005-05-10) and 1.4.1 (2006-02-28). I have nothing else running, e.g. Widgets, Screen Savers, No Energy Saver settings, all non-essential software is disabled/closed. It occurs with or without firewire bus power or a separate power supply. If I swap back to Built-in audio as my Audio driver I can play stuff through the internal speakers, but if I then switch back to MOTU Traveler as the Audio device the problem is still there. The only way out is to re-boot the machine - which is re-loading the driver, I guess.

Any help would be gratefully received

[slackhammond2]

Thanks Cornutt

No reply for over 3 days from MOTU, but armed with your info, I'll hassle them again with more details, and hope they take notice. Since your reply, I've tried it with iTunes instead of Logic, and I get the same issue!
Many thanks

Slack