This is still affecting 18.04, I've added a link to an upstream bug report.
** Bug watch added: github.com/lathiat/avahi/issues #176 https://github.com/lathiat/avahi/issues/176 ** Also affects: avahi via https://github.com/lathiat/avahi/issues/176 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to avahi in Ubuntu. https://bugs.launchpad.net/bugs/831022 Title: avahi daemon erroneously assumes host name conflicts (and causes more trouble then) Status in Avahi: New Status in avahi package in Ubuntu: Triaged Bug description: Hi, i am running the server edition of Ubuntu LTS on a HP Proliant server. That avahi daemon is driving me crazy. The server is named Server1 , retrieves it's IP address pseudostatically from a DHCP server, and announces several of its services through avahi (e.g. offering print services to iPads, that's why Avahi is needed). every now and then (not always) avahi daemon claims to have detected a name collision at boot time. It then logs Aug 22 13:09:40 Server1 avahi-daemon: Host name conflict, retrying with <Server1-2> and uses Server1-2 as it's name, causing even the DHCP-Server to apply with a different host name, thus causing a new IP address to be assigned. This avahi daemon is breaking my network structure and does not even tell in the logs, where the conflict came from or what made the daemon believe that there was a conflict. ProblemType: Bug DistroRelease: Ubuntu 10.04 Package: avahi-daemon 0.6.25-1ubuntu6.2 ProcVersionSignature: Ubuntu 2.6.32-33.72-server 188.8.131.52+drm33.18 Uname: Linux 2.6.32-33-server x86_64 Architecture: amd64 Date: Mon Aug 22 13:24:06 2011 InstallationMedia: Ubuntu-Server 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.2) ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/tcsh SourcePackage: avahi To manage notifications about this bug go to: https://bugs.launchpad.net/avahi/+bug/831022/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : firstname.lastname@example.org Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp