I'm also getting this problem. Strayngely, I can get the package lists manually with wget, but apt-get update or aptitude update fails.
So, for example, this works: wget http://packages.medibuntu.org/dists/precise/non- free/binary-i386/Packages even though when I do apt-get update, I have this error (amongst others): W: Failed to fetch http://packages.medibuntu.org/dists/precise/non-free/binary-i386/Packages Unable to connect to packages.medibuntu.org:http: -- You received this bug notification because you are a member of Medibuntu Packaging Team, which is the registrant for Medibuntu. https://bugs.launchpad.net/bugs/985441 Title: Medibuntu offline To manage notifications about this bug go to: https://bugs.launchpad.net/medibuntu/+bug/985441/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~medibuntu-maintainers Post to : [email protected] Unsubscribe : https://launchpad.net/~medibuntu-maintainers More help : https://help.launchpad.net/ListHelp

