This is a problem with gnome-control-center/ubuntu-system-services. The static proxy setting are written to /etc/environment and /etc/apt/apt.conf but this is not done for the automatic proxy settings.
** Summary changed: - Software centre fails to install software on system with system-wide proxy configured + No system-wide proxy for "automatic" proxy setting method ** Package changed: software-center (Ubuntu) => gnome-control-center (Ubuntu) ** Changed in: gnome-control-center (Ubuntu) Status: Incomplete => Confirmed ** Changed in: gnome-control-center (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to software-center in Ubuntu. https://bugs.launchpad.net/bugs/1084851 Title: No system-wide proxy for "automatic" proxy setting method Status in “gnome-control-center” package in Ubuntu: Confirmed Bug description: Ubuntu Version info: Description: Ubuntu 12.10 Release: 12.10 Software centre version info: Installed: 5.4.1.2 Candidate: 5.4.1.2 Version table: *** 5.4.1.2 0 500 http://us.archive.ubuntu.com/ubuntu/ quantal/main amd64 Packages 100 /var/lib/dpkg/status I have a computer which is on a network with a proxy configured (where the "Apply system-wide" button was used) on which the USC fails to install software with an error dialogue of: "Failed to download package files Check your Internet connection." I am able to browse the internet in Firefox and install packages from the command line using aptitude on this same computer. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-control-center/+bug/1084851/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp