OK I hadn't saw this point in networkmanager I will have a look at it. Here is the output of consoles you asked :
arn...@jupiter:~$ sudo /usr/share/system-tools-backends-2.0/scripts/SystemToolsBackends.pl -m IfacesConfg -v begin::Start of work report. file_locate_tool_success::Found tool [uname]. file_run_pipe_success::Piping command [LC_ALL=C PATH=$PATH:/sbin:/usr/sbin /bin/uname -s 2> /dev/null |] for reading. Can't locate IfacesConfg.pm in @INC (@INC contains: /usr/lib/perl5 /usr/share/system-tools-backends-2.0/scripts /etc/perl /usr/local/lib/perl/5.10.0 /usr/local/share/perl/5.10.0 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_perl .) at /usr/share/system-tools-backends-2.0/scripts/SystemToolsBackends.pl line 51. I don't think this one is what you expected_ and here is the second one : arn...@jupiter:~$ sudo network-admin [sudo] password for arnaud: ** (network-admin:13864): CRITICAL **: connection_combo_set_value: assertion `method != NULL' failed -- gnome-network-admin can't save my updates https://bugs.launchpad.net/bugs/453150 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-system-tools in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
