A workaround that has worked every time so far: restart the squid-deb-proxy-avahi process on the server machine. sudo service squid-deb-proxy-avahi restart
The problem seems to occur when the server is on for a couple of days or a week. The first few days everything works without problems. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/655187 Title: Cannot apt-get upgrade if squid-deb-proxy-avahi is running -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs