I repeated my tests with a known AP with success! It was an Asus RT-AC56U Firmware Version: 3.0.0.4.378_4585 This site will propably contain all the information about the AP: https://wikidevi.com/wiki/ASUS_RT-AC56U
The network i associated with is secured by WPA2. ** Attachment added: "related dmesg lines" https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1525228/+attachment/4541789/+files/wifilog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1525228 Title: Qualcomm Atheros QCA61x4 cannot connect to encrypted 5Ghz networks To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1525228/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs