Yes i restarted isc-dhcp-server with systemctl restart isc-dhcp-server ( even tried a reboot once)
# dpkg -l | grep ppa1 ii isc-dhcp-server 4.4.1-2.1ubuntu6~ppa1 amd64 ISC DHCP server for automatic IP address assignment ii libdns-export1109 1:9.11.16+dfsg-3~ppa1 amd64 Exported DNS Shared Library ii libirs-export161 1:9.11.16+dfsg-3~ppa1 amd64 Exported IRS Shared Library ii libisc-export1105:amd64 1:9.11.16+dfsg-3~ppa1 amd64 Exported ISC Shared Library ii libisccfg-export163 1:9.11.16+dfsg-3~ppa1 amd64 Exported ISC CFG Shared Library # systemctl status isc-dhcp-server ● isc-dhcp-server.service - ISC DHCP IPv4 server Loaded: loaded (/lib/systemd/system/isc-dhcp-server.service; enabled; vendor preset: enabled) Active: active (running) since Thu 2020-08-06 07:26:09 BST; 2min 39s ago Docs: man:dhcpd(8) Main PID: 42301 (dhcpd) Tasks: 4 (limit: 9569) Memory: 7.6M CGroup: /system.slice/isc-dhcp-server.service └─42301 dhcpd -user dhcpd -group dhcpd -f -4 -pf /run/dhcp-server/dhcpd.pid -cf /etc/dhcp/dhcpd.conf Aug 06 07:28:47 gw2-focal dhcpd[42301]: Remove host declaration test or remove 192.168.0.90 Aug 06 07:28:47 gw2-focal dhcpd[42301]: from the dynamic address pool for 192.168.0.0/24 Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.0.90 (192.168.0.2) from MACREMOVED via ens3: ignored (not authoritative). Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens13: ignored (not authoritative). Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens12: ignored (not authoritative). Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens11: ignored (not authoritative). Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens10: ignored (not authoritative). Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens9: ignored (not authoritative). Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens8: ignored (not authoritative). Aug 06 07:28:47 gw2-focal dhcpd[42301]: DHCPREQUEST for 192.168.6.161 (192.168.6.3) from MACREMOVED (test) via ens3: ignored (not authoritative). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1872118 Title: DHCP Cluster crashes after a few hours To manage notifications about this bug go to: https://bugs.launchpad.net/dhcp/+bug/1872118/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs