Ubuntu 16.04.1 System policy prevents modification of network settings for all users

[buggycub]

Same bug as described for Ubuntu 15.04 (see https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/964705) is still in my Ubuntu 16.04.1! My workaround is simple but strange:

After switching on my notebook, booting into Ubuntu 16.04.1, and being at the login screen, before having logged into any user, the SIM-PIN menu appears. I key in the SIM-PIN, hit the <Unlock> button, then I am asked again for the SIM-PIN, this time with the error message "PolicyKit authorization failed: challenge needed for org.freedesktop.ModemManager1.Device.Control". My workaround:

Hit the <Cancel> button

After that, I am able to log in and connect with my Aldi/Medion Huawei E173 USB stick to the network, if I am an AdminUser. For a user without Admin-rights it is a little bit more complicated after having logged in: he has to unlock the SIM pin again, then he is asked for the Admin passwort because necessary administrative rights. He has to hit <Cancel> twice, but then he can connect to the network without any knowledge of the Admin-paswort. Strange!

Will Ubuntu 16.04 sometime come to the point of enabling mobile networking as simple as it was with Ubuntu 14.04?

Thank you,

siggi2

[buggycub (smusnmr)]

Sorry, big mistake in my title: though the following text clearyl says "Ubuntu 16.04.1", also the title should read
>>> Ubuntu 16.04.1 System policy prevents modification of network settings for all users <<<

Unfirtunately, I do not know how to re-edit my title! Canthis be done?

[buggycub (smusnmr)]

Found it, now the title is correct. Please excuse my inexperience with this forum!

[buggycub (smusnmr)]

Found it. Now the title is correct. Please excuse my inexperience with this forum!

[buggycub (smusnmr)]

I see that in
https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/964705
the "Cancel" workaround was used already. Sorry.

However I should add, that with my Ubuntu 16.04.1 I had also to add a new file
/lib/udev/rules.d/70-usb-modeswitch.rules
to get networking with my Aldi/Medion Mobile Huawei E173:

# own udev rules for Aldi/Medion Huawei E173
ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1446", RUN+="/usr/sbin/usb_modeswitch -v 12d1 -p 1446 -M '55534243123456780000000000000011062000000100000000000000000000'"
ACTION=="add", SUBSYSTEM=="usb", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1436", RUN+="/bin/bash -c 'modprobe option && echo 12d1 1436 > /sys/bus/usb-serial/drivers/option1/new_id'"

(Modified from https://wiki.ubuntuusers.de/USB_ModeSwitch/). Probably nother 16.04 bug.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Carlo Lobrano (c-lobrano)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.
I marked this bug as duplicate of bug #964705.

Could you please take some time to open one more bug for the udev rule you added?