I have this same problem with a new pci card I bought for my desktop computer. Since it's a desktop computer that is only going to connect to my single AP, I don't really care about roaming, so I cooked a patch to replicate the behaviour of the one posted here earlier for newer NetworkManager versions. I have 0.8.1-6 from Debian sid (which is what I use).
** Patch added: "up-to-date version of disabling scanning for active devices" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/373680/+attachment/1781797/+files/60-disable-scan.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/373680 Title: network-manager fails periodically , on backgound networks scan? -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs