Actually the problem were I tried to connect to another wireless network which had the same name as my home network: "default". Seems like using the same network name is a problem.
-- NM sometimes drops connection before associating, logfile says assertion `dev != NULL' failed https://bugs.launchpad.net/bugs/124706 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
