You shouldn't need to reinstall anything, this sounds simply like the packages of network-manager not all being at the same version: this is why we suggest rebooting after these packages change, as indicated by the red icon at the top right corner of the screen (the power symbol). Rebooting is normally sufficient, otherwise there may be an issue with the exact packages being installed separately from a "default" install.
Can you tell what was being installed at the time or just before this appeared? Providing /var/log/apt/history.log may help here if we can also have a clear date of when this started to happen. -- 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/856101 Title: No network interfaces configured after login Status in “network-manager” package in Ubuntu: Invalid Bug description: Recent update, approximately 2011/09/19, network interfaces are no longer enabled and network applet is not in top bar. I can configure the network manually with: sudo ifconfig eht0 up && sudo dhclient3 eth0 Also, the network settings applet in system settings gives the following error: The system network services are not compatible with this version. A second laptop with completely different hardware, but at same package versions is not experiencing any problems. It's an eepc 901. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: network-manager 0.9.0-0ubuntu3 ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4 Uname: Linux 3.0.0-11-generic x86_64 ApportVersion: 1.23-0ubuntu1 Architecture: amd64 CRDA: Error: [Errno 2] No such file or directory Date: Wed Sep 21 23:27:24 2011 Gconf: IfupdownConfig: auto lo iface lo inet loopback IpRoute: default via 192.168.1.1 dev eth0 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.195 Keyfiles: Error: [Errno 2] No such file or directory NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true ProcEnviron: PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/856101/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
