Hi @User443206.
Thanks for reaching out, let me see what I can do to help.
This error means that Sonos is able to see the computer on the network, but the computer isn’t responding to the sharing request. Sonos is connecting to the correct device, but the device isn’t letting Sonos through.
It’s likely that a firewall is blocking the computer from sharing its music files with Sonos. Follow the steps in our firewall article to configure your firewall to allow file sharing.
You can find more information in our article on troubleshooting problems with the music library.
Let me know how that goes.
Help others find useful content by clicking the like button and selecting the best answer to your question