Very much so (although the settings page could be lying to me): Copy from the settings page of my AP: Wireless > Channel and SSID
Wireless Channel: 11 Extension Channel: 7 SSID: ... Wireless Mode: 802.11g Bandwidth: 20/40Mhz (not changeable) Broadcast SSID: enabled Protected Mode: OFF 802.11e/WMM QoS: ON Wireless > Security Security Mode: WPA/WPA2-Personal(PSK) Authentication: WPA2-PSK Encryption Technique: AES PSK: .... I've set it to G because I have a PS3 and another PC with a G adapter in the network as well. (I thought setting it to just G would be the most reliable setting). About my test run in trusty: I started with using nohwcrypt=0. I sent a 12Mbit/s UDP stream over wlan0 (noone listening on the other end, so it's only transmitting). The connection died and stayed dead after 3-4 hours. Afterwards, with nohwcrypt=1 I could run iperf for 12+ hours until I gave up. It only lost its connection once and it reauthenticated under water immediately after a few hours (which is not bothersome behaviour for me). Then again I did a test with nohwcrypt=0. I got the connection to drop with reason 6 and 15 again after a few hours. I could not get it to authenticate again. I switched by rmmod ath9k_htc and modprobing ath9k_htc with the right options. Eventually this caused a cold reset(!), with all USB devices' power being disabled at boot up. When I replugged my USB keyboard in a different port, it got power and I could choose the USB boot menu to boot trusty.... Instead it reset again, turning off power to *all* USB ports, leaving me no choice but to power down by PSU. Afterwards everything is hunky dory again. Not sure whether this behaviour is significant, as the wifi adapter is also hosted on the USB bus and I'm not sure whether rmmod is supposed to be that dangerous. So I guess using nohwcrypt=1 solely is a winner for me. Txpower does not amount to anything. I haven't had connection problems with my PS3 or with the other PC. I am willing to try out other things if this helps locating this bug. I can see the Ralink RT3052 listed in the openwrt hardware table. Would it be interesting to try out openwrt with this wifi adapter in nohwcrypt=0? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1273392 Title: 0cf3:9271 [MSI FM2-A75IA-E53] ath9k_htc: AR9271 wireless device stops functioning Status in “linux” package in Ubuntu: Incomplete Bug description: A long time after a cold boot, my wireless connection starts dropping, will try to reconnect but will not come back again. When I'm in that state only a suspend, waiting a while and resuming gets my wireless connection back again. However, after that state it does not take long before it starts to drop again. WORKAROUND: I could not reproduce this problem again after setting nohwcrypt=1 on the ath9k_htc module. ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: linux-image-3.11.0-15-generic 3.11.0-15.23 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic x86_64 ApportVersion: 2.12.5-0ubuntu2.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: sander 1881 F.... pulseaudio /dev/snd/controlC0: sander 1881 F.... pulseaudio Date: Mon Jan 27 20:27:01 2014 HibernationDevice: RESUME=UUID=3f3e0b39-93b8-4c28-a8cd-91f2cf4a6890 InstallationDate: Installed on 2013-09-13 (136 days ago) InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130912) MachineType: MSI MS-7792 MarkForUpload: True ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic root=UUID=add6edeb-2e13-438b-814e-d4995835e178 ro persistent quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.11.0-15-generic N/A linux-backports-modules-3.11.0-15-generic N/A linux-firmware 1.116 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: dmi.bios.date: 04/24/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V2.0 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: FM2-A75IA-E53 (MS-7792) dmi.board.vendor: MSI dmi.board.version: 1.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 1.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV2.0:bd04/24/2013:svnMSI:pnMS-7792:pvr1.0:rvnMSI:rnFM2-A75IA-E53(MS-7792):rvr1.0:cvnMSI:ct3:cvr1.0: dmi.product.name: MS-7792 dmi.product.version: 1.0 dmi.sys.vendor: MSI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1273392/+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
