Unplugging your M-Audio USB audio interface (such as the Micro USB) while M-Audio's Session software is running may cause audio processing to fail when the device is plugged back in. Also, unplugging your audio interface while Session is running can cause the auto-configuration of your audio hardware to malfunction the next time Session is launched, causing session to default to your computer’s built-in sound card, instead of your low-latency M-Audio hardware.

If Session’s audio hardware auto-configuration function does fail for any reason, M-Audio recommends doing the following:

1. Close Session.

2. Unplug and then re-connect your M-Audio USB audio interface to your computer.

3. Open your M-Audio control panel (located in the system tray in the bottom right corner of your screen, or under Start button/Control Panel/M-Audio device icon) and confirm that the device is recognized by your computer.  If your device is recognized, a message confirming the device is “Connected” will appear in the M-Audio control panel. If the M-Audio control panel says that your device is “not connected”, then restart your computer and check the message again.

4. Launch Session and choose Options/Audio Hardware.

5. Confirm that your audio hardware is set to ASIO mode instead of WDM mode. If your device is set to ASIO by default, resume using Session. If your device is set to WDM by default, Close Session, then re-launch.