Hello @shlomo_reichani
I’m sorry to hear that you’re having issues seeing your Cary DMS 500 in your Roon Audio devices. We definitely want to help you get this cleared up. Can you please send us a screenshot of your Audio Devices page so we can take a look at what you’re seeing? Please be sure to include the Roon Ready and Airplay sections.
How is the Cary DMS 500 connected to your network, wired or Wi-fi?
Additionally, @john advised that you check your firewall settings. Can you please confirm that you’ve done that as well? Begin be disabling the firewall entirely. If you can see the Cary DMS 500 after doing so you’ll want to add exceptions for Roon then re-enable your firewall. This help article explains the exceptions you’ll need to add.
When submitting a support request it’s critical to provide a brief description of your current setup using this link as a guide.
Please make sure to describe your network configuration/topology, including any networking hardware currently in use, so we can have a clear understanding of how your devices are communicating. This information will save time and provide the basis for troubleshooting your issue.