Roon Core Machine
Ubuntu Server (21.04)
Networking Gear & Setup Details
All network connections are wired, iOS (iPad + iPhone) used as Roon Remotes
Connected Audio Devices
Raspberry Pi + Hifiberry DAC as Roon EndPoint
Number of Tracks in Library
No local library
Description of Issue
All working fine until the 1.8 Fall update. After that, the Roon remotes cannot connect to the core machine anymore / cannot find it on the network anymore. Disabling the UFW firewall on Ubuntu ‘solves’ the issue, so it’s obviously related to firewall settings. Ports opened for Roon previously: 1900 (UDP) and 9100:9200 (TCP). Which changes are needed to make Roon connections possible again with firewall active?