weisswilly1985 THANK YOU - your workaround is a lifesaver on my rpi4, Raspberry Pi OS (stock kernel).
Here's my tested script to get it installed locally: # add a workaround script to rememdy eth0 losing it's IP lease randomly wget https://raw.githubusercontent.com/WillyWeiss/Avahi-daemon-withdraws-address-record-/master/isc-dhcp-fix.sh sudo mv isc-dhcp-fix.sh /usr/bin/isc-dhcp-fix.sh sudo chmod +x /usr/bin/isc-dhcp-fix.sh sudo chown root:root /usr/bin/isc-dhcp-fix.sh sudo nano /etc/rc.local # add this line just above the final 'exit 0' line /usr/bin/isc-dhcp-fix.sh & # run it without a reboot to check for errors, then reboot bash /usr/bin/isc-dhcp-fix.sh & sudo reboot now and here it is in action in the daemon.log file - Nov 2 20:51:34 raspberrypi avahi-daemon[385]: Withdrawing address record for 10.0.1.176 on eth0. Nov 2 20:51:34 raspberrypi avahi-daemon[385]: Leaving mDNS multicast group on interface eth0.IPv4 with address 10.0.1.176. Nov 2 20:51:34 raspberrypi avahi-daemon[385]: Interface eth0.IPv4 no longer relevant for mDNS. Nov 2 20:51:34 raspberrypi dhclient[14510]: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3 Nov 2 20:51:34 raspberrypi dhclient[14510]: DHCPOFFER of 10.0.1.176 from 10.0.1.1 Nov 2 20:51:34 raspberrypi dhclient[14510]: DHCPREQUEST for 10.0.1.176 on eth0 to 255.255.255.255 port 67 Nov 2 20:51:34 raspberrypi dhclient[14510]: DHCPACK of 10.0.1.176 from 10.0.1.1 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1586528 Title: Avahi-daemon withdraws address record Status in avahi package in Ubuntu: Invalid Status in network-manager package in Ubuntu: Confirmed Bug description: For some reason, if I leave my Ubuntu VM up for a prolonged period of time the machine will lose connection to the network. ip addr shows that the nic port no longer has an address and an examination of the syslog shows this: May 27 14:19:38 matt-VirtualBox avahi-daemon[590]: Withdrawing address record for 10.0.2.15 on enp0s3. May 27 14:19:38 matt-VirtualBox avahi-daemon[590]: Leaving mDNS multicast group on interface enp0s3.IPv4 with address 10.0.2.15. May 27 14:19:38 matt-VirtualBox avahi-daemon[590]: Interface enp0s3.IPv4 no longer relevant for mDNS. for no known reason. The only reliable way to get the network to come back (that I have found) is a full reboot. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: avahi-daemon 0.6.32~rc+dfsg-1ubuntu2 ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 CurrentDesktop: Unity Date: Fri May 27 15:11:34 2016 InstallationDate: Installed on 2015-10-22 (218 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) SourcePackage: avahi UpgradeStatus: Upgraded to xenial on 2016-03-30 (58 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1586528/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
