Comment 51 for bug 704123

As

themroc (rauchweihe) wrote on 2015-01-21: #43
> You can solve the problem if you uncheck the option "All users can connect with this network" in connection settings.

this is true, works for me and should point to the right direction where the actual bug might be.

from wild guessing: if checked "All users can connect with this network" network manager will avoid to use the stored PIN in /etc/NetworkManager. So, the quetsion standing is: why isn't it using the PIN stored in gnome-keyring, if available.

Then again, the workaround mentioned by themroc should be sufficient for almost all use cases of this hardware (where does one really need multiple users on a mobile machine being able to use the same UMTS connection, where at the same time it is impossible to add that same connection for each user once ..?)

my 2 cents :_)