The problem is solved by removing /lib/firmware/ath10k/QCA6174/hw3.0/firmware-6.bin It is not a part of any official ubuntu packages, I don't remember why I installed it, but everything works fine on 5th version of API.
** Also affects: openssl Importance: Undecided Status: New ** No longer affects: openssl ** Changed in: openssl (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1733927 Title: wifi hungs after openssl upgrade to 1.0.2g-1ubuntu4.9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/1733927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs