So the strace shows the expected behavior as far as detecting and connecting to your proxy, it then shows the expected "CONNECT" command being issued, the rest after that point is a TLS discussion so not something that can be figured out from an strace...
That combined with the fact that using images: works as expected, makes me strongly suspect something weird going on with your proxy server... Can you share any details as to what software is used for that proxy, what version and even better, what configuration? I tried here with squid3 from trusty and xenial and can't reproduce the problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1575386 Title: Proxy issue with 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxd/+bug/1575386/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs