Here you are reporting 4 different problems. I think most of them are solved or already are having their own bug reports.
There is no longer autoconnection of 3G devices, so the problems related to that should have been solved. I think you can measure data traffic for each network device to distinguish the wifi traffic. If you see any of these problems in a recent Ubuntu version, please open a terminal and type "ubuntu-bug network-manager" and please describe only one issue. ** Changed in: network-manager-applet (Ubuntu) Status: Confirmed => Invalid ** Changed in: network-manager-applet (Debian) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to the bug report. https://bugs.launchpad.net/bugs/796872 Title: Serious Network Manager Issues with Mobile Broadband To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/796872/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs