I can't seem to reproduce this here at all... A failure to use the proxy would result in a different message than what you got, so best guess is that it did indeed receive an invalid response from the proxy...
Can you attach the output of: https_proxy=http://proxy.company.com:8080 http_proxy=http://proxy.company.com:8080 strace -fF lxc image info ubuntu: Might also be interesting to see if the problem if this affects the other image server, try: https_proxy=http://proxy.company.com:8080 http_proxy=http://proxy.company.com:8080 lxc image info images:ubuntu/xenial/amd64 -- 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