This is indeed still a bug in 12.04. When doing an apt-get update behind a captive portal, the lists files get corrupted and won't be fixed even after the portal is gone. The only fix is to remove those files.
This is indeed still a bug in 12.04. When doing an apt-get update behind a captive portal, the lists files get corrupted and won't be fixed even after the portal is gone. The only fix is to remove those files.