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RedNet's default to Expansion Mode when connected to Pro Tools HD hardware

This applies to the RedNet 5, and RedNet HD32R

Since the release of Pro Tools 12.7 Pro Tools HD/HDX/HD Native hardware defaults to 192 kHz sample rate when Pro Tools is closed on Mac systems, which causes connected RedNet 5/HD32Rs to switch into expansion mode. Expansion mode causes the RedNet unit to be seen as 16 I/O device. 

This behavior is due to the fact that the RedNet follows the sample rate of the Pro Tools HD hardware. Fortunately this can be resolved by manually adjusting the sample rate from within Audio MIDI Setup (Applications > Utilities > Audio MIDI Setup) when Pro Tools is closed.

Change the sample rate for the HD/HDX/HD Native card to the desired value then open RedNet Control to ensure that everything is properly configured. To disable expansion mode click on the wrench/gear icon located next to the RedNet in RedNet Control and uncheck the Expansion Mode box.

The RedNet 5/HD32R should now retain the sample rate set in Audio MIDI Setup whenever Pro Tools is closed.

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