I confirmed that downgrading the libnss2 package from 2:3.21-1ubuntu2 to 2:3.19.2.1-0ubuntu0.15.10.1 fixed the issue.
I've only been able to reproduce in Chromium, unable to reproduce in Epiphany, curl, Google Chrome, Pidgin and the ubuntu browser. ** Also affects: chromium-browser (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1520568 Title: All queries fails : ERR_SSL_PROTOCOL_ERROR To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1520568/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs