So maybe we should un-duplicate bug 1551415 as not acting on SIGHUP likely is something that could be different and also affect the network- manager case. I think I saw some comment there about shutdown/reboot times being increased. The problem of not keeping leases active is limited to systems using ifup/-down (or anything that starts dhclient in daemon mode).
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to isc-dhcp in Ubuntu. https://bugs.launchpad.net/bugs/1551351 Title: dhclient does not renew leases Status in bind9 package in Ubuntu: Confirmed Status in isc-dhcp package in Ubuntu: Confirmed Status in bind9 source package in Xenial: Confirmed Status in isc-dhcp source package in Xenial: Confirmed Bug description: Release: Xenial I think this only recently started after some bind9 updates triggered a rebuild. When booting dhclient gets started and acquires an IP address, but it does seem to lock up somewhere as it does not renew the lease. In my environment I set the lease time to 5 minutes, so I notice such things rather soon. I looked on the dhcp server side but saw any further dhcp messages come in from the client side. Related bugs: * bug 1551415: systemctl stop networking hang / timeout ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: isc-dhcp-client 4.3.3-5ubuntu8 ProcVersionSignature: Ubuntu 4.4.0-9.24-generic 4.4.3 Uname: Linux 4.4.0-9-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 Date: Mon Feb 29 12:32:52 2016 DhclientLeases: SourcePackage: isc-dhcp UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bind9/+bug/1551351/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp