Disabling IPv6 worked for me, but it also works if you just tell Network Manager to not require IPv6 to complete for the connection to stay up. For some reason Network Manager is segfaulting when these steps are not taken. Oddly enough, it worked out of the box on my netbook. I cannot re-create the problem on my netbook, it works just fine when I have that box checked and IPv6 set to Automatic.
-- 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/1155388 Title: Network connects and disconnects rapidly, both wired and wifi Status in “network-manager” package in Ubuntu: Confirmed Bug description: Fresh update of 13.04, now network connects sporadically. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: network-manager 0.9.8.0-0ubuntu1 ProcVersionSignature: Ubuntu 3.8.0-12.21-generic 3.8.2 Uname: Linux 3.8.0-12-generic i686 ApportVersion: 2.9.1-0ubuntu1 Architecture: i386 Date: Thu Mar 14 20:54:16 2013 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2013-02-17 (25 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha i386 (20130211) InterestingModules: b44 IpRoute: default via 192.168.1.1 dev eth0 proto static 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.147 metric 1 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.145 metric 9 MarkForUpload: True NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-dev: DEVICE TYPE STATE DBUS-PATH wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/1 eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.8.0 connected enabled enabled enabled enabled disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1155388/+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
