[Bug 1327670] Re: WiFi connects to AP, but doesn't work. Setting rate to auto fixes it.

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** Tags added: kernel-autoclosed kernel-autoclosed-expired

** Changed in: linux (Ubuntu)
Status: Confirmed => Expired

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https://bugs.launchpad.net/bugs/1327670

Title:
WiFi connects to AP, but doesn't work. Setting rate to auto fixes it.

Status in linux package in Ubuntu:
Expired

Bug description:
Fresh 14.04 install on a Packard Bell Notebook.

WiFi device:
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192SE Wireless LAN Controller (rev 10)

rtl8192se kernel module

If connecting to my home WiFi, it shows as connected, but there is no connectivity. I can't ping anything, not even the access point itself, althought DHCP settings are retrieved correctly.
iwconfig reports a rate stuck at 1Mb/s, although link quality is 70/70 and Signal level -28dBm.
If I set the rate to auto with "iwconfig wlan0 rate auto", it switches to 54 Mb/s (max the AP supports) and everything seems to work fine (I used it for few hours now, downloaded few 100 MB, mostly Ubuntu packages).

When connecting to an Android Hotspot, the problem doesn't occur, thus it seems to be AP dependent.
Difference in dmesg between connecting to the "bad" and the "good" AP:
When connecting to the bad one, it additionally shows this 2 lines:
[10961.059621] rtl8192se 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[10961.059626] rtl8192se 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
Don't know if that's related.

I've been connected to this AP with a lot of devices (mainly mobile)
without any issues.

The AP is a Linksys WRT54GL with Tomato 1.28 firmware.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-firmware 1.127.2
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Sun Jun 8 02:20:45 2014
Dependencies:

InstallationDate: Installed on 2014-06-07 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=de_DE
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
SourcePackage: linux-firmware
UpgradeStatus: No upgrade log present (probably fresh install)
---
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: aida 1849 F.... pulseaudio
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=3b1b248a-c783-4dca-a900-1c7aa27863e5
InstallationDate: Installed on 2014-06-07 (11 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
Lsusb:
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0402:9665 ALi Corp. Gateway Webcam
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Packard Bell EasyNote TK85
Package: linux (not installed)
ProcEnviron:
LANGUAGE=de_DE
TERM=xterm
PATH=(custom, no user)
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic root=UUID=ab640bfe-9bc6-4e2d-a1a9-747545b2e0db ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.13.0-29.53-generic 3.13.11.2
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-3.13.0-29-generic N/A
linux-backports-modules-3.13.0-29-generic N/A
linux-firmware 1.127.2
Tags: trusty
Uname: Linux 3.13.0-29-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

_MarkForUpload: True
dmi.bios.date: 08/24/2010
dmi.bios.vendor: Packard Bell
dmi.bios.version: V1.05
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: EasyNote TK85
dmi.board.vendor: Packard Bell
dmi.board.version: V1.05
dmi.chassis.type: 10
dmi.chassis.vendor: Packard Bell
dmi.chassis.version: V1.05
dmi.modalias: dmi:bvnPackardBell:bvrV1.05:bd08/24/2010:svnPackardBell:pnEasyNoteTK85:pvrV1.05:rvnPackardBell:rnEasyNoteTK85:rvrV1.05:cvnPackardBell:ct10:cvrV1.05:
dmi.product.name: EasyNote TK85
dmi.product.version: V1.05
dmi.sys.vendor: Packard Bell

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