W: Failed to fetch http://astromirror.uchicago.edu/ubuntu/ ... elease.gpg Could not connect to astromirror.uchicago.edu:80 (128.135.4.34). - connect (111: Connection refused)
W: Failed to fetch http://astromirror.uchicago.edu/ubuntu/ ... -en_US.bz2 Could not connect to astromirror.uchicago.edu:80 (128.135.4.34). - connect (111: Connection refused)
Any ideas?