The intent of NetworkManager is to provide always a network connection. for example if you remove the ethernet cable, then a wireless connection is available. so this is not a bug, it's a feature. but if you don't want a wireless connection, you can disconnect manually and NM should not try to reconnect.
** Changed in: network-manager (Ubuntu) Status: Confirmed => Invalid -- 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/944104 Title: NM tries to connect to wireless when ethernet is connected Status in “network-manager” package in Ubuntu: Invalid Bug description: Generally NM will connect to ethernet when plugged in. However, even when connected to ethernet, it will try to connect to wireless at the same time. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: network-manager 0.9.1.90-0ubuntu5.1 Uname: Linux 3.3.0-030300rc2-generic x86_64 ApportVersion: 1.23-0ubuntu4 Architecture: amd64 Date: Wed Feb 29 16:30:07 2012 Gconf: IfupdownConfig: auto lo iface lo inet loopback InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429) IpRoute: default via 9.2.200.2 dev eth0 proto static 9.2.200.0/21 dev eth0 proto kernel scope link src 9.2.202.205 metric 1 169.254.0.0/16 dev eth0 scope link metric 1000 Keyfiles: Error: [Errno 2] No such file or directory NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: network-manager UpgradeStatus: Upgraded to oneiric on 2011-12-09 (81 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/944104/+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