On 24 March 2017 at 16:46, Rick Stevens <ricks@xxxxxxxxxxxxxx> wrote: > On 03/23/2017 05:40 PM, Ian Malone wrote: >> On 12 January 2017 at 05:04, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: >>> Damn strange. >>> >>> The computer is in a static location for all tests. This is still using >>> iperf in all cases, but abbreviated since I'm copying by hand. Each test is >>> about five seconds apart. >>> >>> Fedora 25 live >>> 58 Mbit/sec >>> 61 >>> 41 >>> >>> Fedora 24 live >>> 54 Mbit/sec >>> 46 >>> 38 >>> 65 >>> >>> Fedora 25 installed >>> 29 >>> 42 >>> 38 >>> 38 >>> co >>> There are a total of three wireless devices connected to this AP. All are >>> connected at the same time but only the test client is actively being used >>> when the testing is happening. But it's in an apartment building, with >>> hundreds of units all of which have wireless APs. >>> >> >> Did anyone get to the bottom of this? I installed F25 a couple of >> weeks ago and network performance is noticeably poorer on this >> machine. When browsing the internet, or particularly on Ajax based >> sites like gmail or google search connections seem to just drop. The >> previous Fedora that was on this machine (23 I think) was fine, and my >> laptop (still on an older Fedora) and other devices have not >> experienced any change. Looking in journalctl as root I see frequent >> renegotiation with the AP, e.g.: >> Mar 24 00:21:29 atlas wpa_supplicant[864]: wlp2s0: SME: Trying to >> authenticate with xx:xx:xx:xx:xx:xx (SSID='X' freq=5200 MHz) >> Mar 24 00:21:29 atlas kernel: wlp2s0: disconnect from AP >> xx:xx:xx:xx:xx:xx for new auth to 00:a4:23:17:18:e5 >> Mar 24 00:21:29 atlas kernel: wlp2s0: authenticate with xx:xx:xx:xx:xx:xx >> Mar 24 00:21:29 atlas kernel: wlp2s0: send auth to xx:xx:xx:xx:xx:xx (try 1/3) >> Mar 24 00:21:29 atlas kernel: wlp2s0: authenticated >> Mar 24 00:21:29 atlas kernel: wlp2s0: associate with xx:xx:xx:xx:xx:xx (try 1/3) >> Mar 24 00:21:29 atlas wpa_supplicant[864]: wlp2s0: Trying to associate >> with xx:xx:xx:xx:xx:xx (SSID='X' freq=5200 MHz) >> While the machine is supposedly connected. >> >> There's also this, >> Mar 24 00:21:29 atlas systemd-udevd[5658]: Process '/usr/sbin/crda' >> failed with exit code 249. >> which can't be a good sign. > > The first things I'd do is see what hardware you actually have: > > # lspci | grep -i wireless > > Then see which driver your wifi is using via > > # ethtool -i wlp2s0 > > See if perhaps there's another driver or perhaps newer firmware you can > use for that chipset. Sometimes the kernel or udev don't necessarily > make the right decisions about which driver to use. My F25 machines with > wifi are both using the iwlwifi driver (both use Intel wireless chips): > > (Desktop) > # lspci | grep -i wireless > 04:00.0 Network controller: Intel Corporation Wireless 3165 (rev 81) > > #ethtool -i wlp4s0 > driver: iwlwifi > version: 4.9.13-201.fc25.x86_64 > firmware-version: 22.361476.0 > ... > > (Laptop) > # lspci | grep -i wireless > 01:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 > [Rainbow Peak] (rev 34) > > # ethtool -i wlan0 > driver: iwlwifi > version: 4.9.14-200.fc25.x86_64 > firmware-version: 18.168.6.1 > ... > > I've had no issues with performance or the ability to stay connected > and the laptop goes LOTS of places with me. The hardware hasn't changed, and was picked specifically because it has good (and long standing) linux support: 02:00.0 Network controller: Qualcomm Atheros AR93xx Wireless Network Adapter (rev 01) driver: ath9k version: 4.9.14-200.fc25.x86_64 firmware-version: N/A expansion-rom-version: bus-info: 0000:02:00.0 supports-statistics: yes supports-test: no supports-eeprom-access: no supports-register-dump: no supports-priv-flags: no Which is the correct driver, unless there's been a regression. It seems like key rotation or something is not taking place smoothly. I see quite a lot of this while it's connected (journactl output, lines may be truncated): Mar 24 22:46:13 atlas wpa_supplicant[898]: wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=CORE type=WORLD Mar 24 22:46:13 atlas kde5-nm-connection-editor[2310]: networkmanager-qt: virtual void NetworkManager::DevicePrivate::propertyChanged(co Mar 24 22:46:13 atlas wpa_supplicant[898]: wlp2s0: Associated with xx:xx:xx:xx:xx:xx Mar 24 22:46:13 atlas kdeinit5[1192]: networkmanager-qt: virtual void NetworkManager::DevicePrivate::propertyChanged(const QString&, con Mar 24 22:46:13 atlas wpa_supplicant[898]: wlp2s0: CTRL-EVENT-SUBNET-STATUS-UPDATE status=0 Mar 24 22:46:13 atlas kdeinit5[1192]: networkmanager-qt: virtual void NetworkManager::DevicePrivate::propertyChanged(const QString&, con Mar 24 22:46:13 atlas wpa_supplicant[898]: wlp2s0: CTRL-EVENT-REGDOM-CHANGE init=USER type=COUNTRY alpha2=GB In my case might be related to https://bugs.mageia.org/show_bug.cgi?id=18935 going to try with regdomain set to GB for a while and see if it helps. -- imalone http://ibmalone.blogspot.co.uk _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
