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 Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1525228 Title: Qualcomm Atheros QCA61x4 cannot connect to encrypted 5Ghz networks Status in linux-firmware package in Ubuntu: Incomplete Bug description: The device works fine with Ubuntu 15.10 mainline kernel 4.2.0 and the firmware provided in linux-firmware on 2,4 Ghz wifi networks or unencrypted 5GHz networks. But when i connect to a encrypted 5Ghz network. The firmware provide in linux-firmware (WLAN.RM.1.1-00141) crashed like i think is described here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1516384 So i installed the latest firmware release SW_RM.1.1.1-00157-QCARMSWPZ-1 from ath10k-firmware (https://github.com/kvalo/ath10k-firmware/) In this version the firmware doesn't crash but goes into a loop. Like you see in dmesg, the device associates with the AP, but from an unknown reason it cannot connect. At the moment i cannot provide you any details about the AP im testing with, because im using my universities network, but if you really need them i can test the device with an known AP in a week or so. I reported the bug to the ath10k mailing list, but i think the topic got lost: http://lists.infradead.org/pipermail/ath10k/2015-November/006478.html PS: I tested the problem with all mainline and upstream kernels(4.2.6, 4.3.0,4.4rc4) without any difference. ----------------------------------------------------------------------------- ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-21-generic 4.2.0-21.25 ProcVersionSignature: Ubuntu 4.2.0-21.25-generic 4.2.6 Uname: Linux 4.2.0-21-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: roman 2043 F.... pulseaudio /dev/snd/controlC1: roman 2043 F.... pulseaudio CurrentDesktop: Unity Date: Fri Dec 11 14:01:58 2015 HibernationDevice: RESUME=UUID=38f2bb72-0ff3-498e-ab17-249df8b33aef InstallationDate: Installed on 2015-10-23 (49 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) MachineType: Acer Aspire VN7-571G ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-21-generic.efi.signed root=UUID=da03328e-3129-4dfc-98d7-b8b06fa3d5f1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-21-generic N/A linux-backports-modules-4.2.0-21-generic N/A linux-firmware 1.149.3 SourcePackage: linux UdevLog: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/08/2015 dmi.bios.vendor: Insyde Corp. dmi.bios.version: V1.14 dmi.board.asset.tag: No Asset Tag dmi.board.name: Aspire VN7-571G dmi.board.vendor: Acer dmi.board.version: V1.14 dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: Acer dmi.chassis.version: V1.14 dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.14:bd01/08/2015:svnAcer:pnAspireVN7-571G:pvrV1.14:rvnAcer:rnAspireVN7-571G:rvrV1.14:cvnAcer:ct10:cvrV1.14: dmi.product.name: Aspire VN7-571G dmi.product.version: V1.14 dmi.sys.vendor: Acer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1525228/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp