Topic: Fireface 400 with Windows XP gets locked to 0Hz or 2Hz sample rate!
firstly, i apologise for not having the full system specifications right now (i will post them tomorrow after i get back to the lab).
we are experiencing a problem with a Fireface 400 (firmware 1.70, driver 3.031) and a Windows XP machine. audio is mostly generated by MATLAB with the Playrec toolbox.
the FF400 will work okay for a couple of days, but then the sample rate will suddenly be grayed out and will lock to 2Hz or 0Hz in the preferences window. if we attempt to change the sample rate, or reload the settings from the FF400 flash memory, the sample rate jumps straight back to 0Hz or 2Hz. rebooting the FF400 or the computer does not help. audio will play, but it stutters and crackles badly.
when the problem occurs, we can immediately plug the FF400 straight into a MacBook Pro, and it works normally.
the only solution we have found is to uninstall and reinstall the driver on the Windows machine.