Andrew, Thank you for your input.
** Do you have any logs or a crash report to take a look after you upgraded these systems? On my test lab , I am counting for 3+ hours without a crash. root@dhcpd1:/home/ubuntu# dpkg -l | grep ppa1 ii isc-dhcp-server 4.4.1-2.1ubuntu6~ppa1 amd64 ISC DHCP server for automatic IP address assignment 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 --- DHCPACK on 10.19.101.120 to 52:54:00:d1:eb:66 (sleek-kodiak) via ens4 balancing pool 555643e55f40 12 total 221 free 111 backup 110 lts 0 max-own (+/-)22 balanced pool 555643e55f40 12 total 221 free 111 backup 110 lts 0 max-misbal 33 balancing pool 555643e55f40 12 total 221 free 111 backup 110 lts 0 max-own (+/-)22 balanced pool 555643e55f40 12 total 221 free 111 backup 110 lts 0 max-misbal 33 --- balancing pool 5595dff0df10 12 total 221 free 111 backup 110 lts 0 max-own (+/-)22 balanced pool 5595dff0df10 12 total 221 free 111 backup 110 lts 0 max-misbal 33 balancing pool 5595dff0df10 12 total 221 free 111 backup 110 lts 0 max-own (+/-)22 balanced pool 5595dff0df10 12 total 221 free 111 backup 110 lts 0 max-misbal 33 --- -- 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