Failed to fetch files when attempting to upgrade to Kubuntu 12.10

After very long time out I received this error message;

Failed to fetch http://au.archive.ubuntu.com/ubuntu/pool/main/t/texlive-bin/texlive-binaries_2012.20120628-3build1_amd64.deb Connection failed
Failed to fetch http://au.archive.ubuntu.com/ubuntu/pool/main/g/ghostscript/libgs9_9.06~dfsg-0ubuntu4_amd64.deb Connection failed
Failed to fetch http://au.archive.ubuntu.com/ubuntu/pool/main/g/ghostscript/libgs9-common_9.06~dfsg-0ubuntu4_all.deb Connection failed
Failed to fetch http://au.archive.ubuntu.com/ubuntu/pool/main/l/linux/linux-headers-3.5.0-36_3.5.0-36.57_all.deb Connection failed
Failed to fetch http://au.archive.ubuntu.com/ubuntu/pool/restricted/f/fglrx-installer-updates/fglrx-updates_9.000-0ubuntu3_amd64.deb Connection failed
Failed to fetch http://au.archive.ubuntu.com/ubuntu/pool/main/p/python-qt4/python-qt4_4.9.3-4_amd64.deb Connection failed
Failed to fetch http://au.archive.ubuntu.com/ubuntu/pool/universe/s/supertuxkart/supertuxkart-data_0.7.3-2_all.deb Connection failed