Many thanks for your replies. @Jimmy Adler I have usually no problem connecting with the device, only after this special disconnect. Switching BT off/on using Systempreferences doesn’t help. It’s more than annoying when 10 hours into an 12 hour print job, the connection breaks down :) Even more so, if you can’t resume the print job for whatever reasons and have to start anew. @Jason Conn I’ll gather some additional infos and will file a bug than. Best regards Stephan _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists.... This email sent to site_archiver@lists.apple.com