Public bug reported: I use ubuntu20.04 and set static IP 192.168.11.22 in /etc/network/interfaces. Most time it could work but sometimes the IP changed to 192.168.11.105, which same to be a DHCP IP. I checked the syslog and journalctl, find that eth0 same to disconnect and be re- configured by dhcilent.:
Oct 22 10:10:03 sv-host NetworkManager[502]: <info> [1634868603.0490] device (eth0): link disconnected (calling deferred action) Oct 22 10:10:03 sv-host NetworkManager[502]: <info> [1634868603.0498] device (eth0): state change: activated -> unavailable (reason 'carrier-changed') [100 20 40] But I don't know which lead eth0 disconnect. Why eth0 doesn't get static IP but DHCP IP when it reconnected? ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Attachment added: "journalctl log about static IP" https://bugs.launchpad.net/bugs/1948364/+attachment/5534988/+files/Static_IP_loss_2021-10-22_10-27-30.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1948364 Title: Static IP set in /etc/network/interfaces sometimes doesn't set properly after reboot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1948364/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs