** Attachment added: "dmesg" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/943910/+attachment/2796998/+files/dmesg
** Description changed: Laptop is a PackardBell EasyNote TK85. I don't know if it is a bug in NetworkManager or ath9k, but I suppose it's ath9k, I also tried with wicd, same problem. Problem exists since 11.04, I tried a lot to fix it. + Tested on Ubuntu and Kubuntu. PROBLEM: From time to time the network becomes very slow, often it is like dead. After a few minutes it gets better again. If I restart networking sometimes it helps, sometimes not. Solutions I tried: - ath9k.conf in modprobe.d with nohwcrypt=1 - networkboot on top in BIOS (according to the internet sometimes it could help) - compat-wireless via backport - power management off - blacklist acer_wmi, because it activates a second wlan-device - deactivate BT to exclude interference After all this trouble I decided to file a bug. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: network-manager 0.9.1.90-0ubuntu5.1 ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17 Uname: Linux 3.0.0-16-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 1.23-0ubuntu4 Architecture: amd64 CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden Date: Thu Mar 1 11:25:53 2012 IfupdownConfig: - auto lo - iface lo inet loopback + auto lo + iface lo inet loopback InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) IpRoute: - default via 192.168.0.1 dev wlan0 proto static - 169.254.0.0/16 dev wlan0 scope link metric 1000 - 192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.176 metric 2 + default via 192.168.0.1 dev wlan0 proto static + 169.254.0.0/16 dev wlan0 scope link metric 1000 + 192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.176 metric 2 NetworkManager.state: - [main] - NetworkingEnabled=true - WirelessEnabled=true - WWANEnabled=true - WimaxEnabled=true + [main] + NetworkingEnabled=true + WirelessEnabled=true + WWANEnabled=true + WimaxEnabled=true RfKill: - 0: phy0: Wireless LAN - Soft blocked: no - Hard blocked: no + 0: phy0: Wireless LAN + Soft blocked: no + Hard blocked: no SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/943910 Title: WLAN connection unstable Status in “network-manager” package in Ubuntu: New Bug description: Laptop is a PackardBell EasyNote TK85. I don't know if it is a bug in NetworkManager or ath9k, but I suppose it's ath9k, I also tried with wicd, same problem. Problem exists since 11.04, I tried a lot to fix it. Tested on Ubuntu and Kubuntu. PROBLEM: From time to time the network becomes very slow, often it is like dead. After a few minutes it gets better again. If I restart networking sometimes it helps, sometimes not. Solutions I tried: - ath9k.conf in modprobe.d with nohwcrypt=1 - networkboot on top in BIOS (according to the internet sometimes it could help) - compat-wireless via backport - power management off - blacklist acer_wmi, because it activates a second wlan-device - deactivate BT to exclude interference After all this trouble I decided to file a bug. ProblemType: Bug DistroRelease: Ubuntu 11.10 Package: network-manager 0.9.1.90-0ubuntu5.1 ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17 Uname: Linux 3.0.0-16-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 1.23-0ubuntu4 Architecture: amd64 CRDA: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden Date: Thu Mar 1 11:25:53 2012 IfupdownConfig: auto lo iface lo inet loopback InstallationMedia: Kubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) IpRoute: default via 192.168.0.1 dev wlan0 proto static 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.0.0/24 dev wlan0 proto kernel scope link src 192.168.0.176 metric 2 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/943910/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
