Welcome to the Roon community and thank you for reaching out.
To help us narrow down the cause, could you please provide a few more details about your setup:
Which devices are you trying to connect? Are they Roon Ready streamers, AirPlay/Chromecast devices, or something connected directly to your laptop via USB/HDMI?
What exactly happens when you try to "enable" them? Do the devices appear in Settings > Audio but fail to respond when you click "Enable," or are they missing from the list entirely?
Screenshots: If possible, please share a screenshot of your Settings > Audio tab. This often provides the most immediate clues.
In the meantime, a common fix for Roon on macOS (especially with Sequoia/Sonoma) is to refresh the network permissions. Please try the following:
Go to System Settings > Privacy & Security > Local Network.
Toggle the switch OFF and then ON again for both Roon and RoonServer.
Restart the Roon app.
Looking forward to your reply so we can get your system up and running.
This thread is now closing due to inactivity since it’s not seen a response in almost a week at this point.
If you’d like to continue the discussion with other users but don’t require any additional official support, you can post anytime in Roon Software Discussion.
If you do require further troubleshooting/assistance with this particular issue, simply submit a new tech support here and our team will reactivate the topic thread. Thank you!