seems similar issue with possible workarounds http://us.generation- nt.com/answer/how-configure-ppp-re-connect-automagically- help-211664512.html
-- 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/1237913 Title: DSL disconnected after 24h, after that cannot connect until NM restart Status in “network-manager” package in Ubuntu: New Bug description: After 1440 minutes DSL was disconnected by ISP, and after that I was unable to connect to DSL automaticallly not manually until restarted NM service. Description: Ubuntu 12.04.3 LTS Release: 12.04 network-manager: Installed: 0.9.4.0-0ubuntu4.3 Candidate: 0.9.4.0-0ubuntu4.3 Version table: *** 0.9.4.0-0ubuntu4.3 0 500 http://ru.archive.ubuntu.com/ubuntu/ precise-updates/main amd64 Packages 100 /var/lib/dpkg/status 0.9.4.0-0ubuntu3 0 500 http://ru.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages logs and config attached. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1237913/+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