It says “No Apogee Systems Found” in Apogee Maestro or Control software and my interface is not recognized

If your Apogee interface is connected to your computer, but not recognized by the Maestro or Control software, there are a few reasons this can happen:

• First, make sure you have installed the latest Apogee software for the version of macOS X you are running. All Apogee software and drivers are free. Complete this express download form to get it: https://apogeedigital.com/express-registration

• If you just installed the Apogee software onto your computer, Apple added an extra security step in newer macOS versions that you need to do. This article explains this further: System Extension Blocked alert during software installation

Try doing a hardware reset on your Apogee device. Here's a list of links on how to do this:

• How do I reset the ONE for iPad & Mac?
• How to reset the Duet 2 or Duet for iPad & Mac
• How to Reset Duet (FireWire)
• How do I Reset Quartet to the Factory Default settings?
• How Do I Reset the Symphony I/O MkII?
• Symphony I/O: Hardware Reset (Initialize)
• Ensemble Thunderbolt - Factory Hardware Reset / Initialize

If you are not logged into your computer under an Administrator account

Apogee Maestro or Control will not properly recognize the Apogee interface if Mac user is logged into a Guest Account.  Maestro simply says “No Apogee Systems Found”.

• Confirm you have latest Apogee software installed, go to Apple Menu > System Preferences > Show All > System Accounts > My Account view > Set User Name to Admin, restart the Mac and Maestro will now launch successfully.