thank you for your bug report, if the system freezes then there is an issue with some low level component and it's not a gnome-control-center issue. Do you get specific syslog entry when getting the problem? Can you go to a vt or is the system really stucked (could be a kernel bug in this case)?
** Package changed: gnome-control-center (Ubuntu) => ubuntu -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-control-center in Ubuntu. https://bugs.launchpad.net/bugs/1704438 Title: system freezes on IPv6 manual configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1704438/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs