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[Bug 852190] Re: 7392:7811 Edimax EW-7811Un USB dongle won't connect to networks (rtl8192cu module)

 

I have the same issue with a WN8200ND adapter (same driver): i cannot
connect to access points with the kernel module shipped in the newest
14.4 build

I didn't find any reference to the following repository which I used to fix the issue partially:
https://github.com/pvaret/rtl8192cu-fixes

Status is as follows:
* before using the above modified driver, my 14.4 kernel (3.13.0-19-generic 64 bit) could not connect to any accesspoint i tried
* after using this driver i can connect to my cellphone's access point but not to another accesspoint where i can connect with my laptop nicely.

If I compare both accesspoints - the one i can connect and the one I
cannot - the differences start after

"link to Broadcom AP"

the accesspoint that works:
"OnAuthCclient
network.SupportedRates[0] = ......
...
many more such lines


the accesspoints that does not work:
"link_timer_hdl: auth timeout and try again
(4 times)
report_join_res(-1)
"

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https://bugs.launchpad.net/bugs/852190

Title:
  7392:7811 Edimax EW-7811Un USB dongle won't connect to networks
  (rtl8192cu module)

Status in The Linux Kernel:
  Incomplete
Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  The networks around are visible, but when trying to connect, the NM
  repeatedly asks for the password. Connecting to an open network fails
  as well.

  lsusb
  Bus 001 Device 002: ID 7392:7811 Edimax Technology Co., Ltd EW-7811Un 802.11n Wireless Adapter [Realtek RTL8188CUS]

  lsmod | grep 8192
  rtl8192cu             103210  0
  rtl8192c_common        75767  1 rtl8192cu
  rtlwifi               110972  1 rtl8192cu
  mac80211              310872  3 rtl8192cu,rtl8192c_common,rtlwifi

  WORKAROUND: Use the drivers downloaded from Realtek's website.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-11-generic 3.0.0-11.18
  ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
  Uname: Linux 3.0.0-11-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 1.23-0ubuntu1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: ALC662 rev1 Analog [ALC662 rev1 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     3937 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xfe978000 irq 43'
     Mixer name	: 'Realtek ALC662 rev1'
     Components	: 'HDA:10ec0662,1b352201,00100101'
     Controls      : 20
     Simple ctrls  : 12
  CasperVersion: 1.284
  Date: Fri Sep 16 20:53:04 2011
  LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110915.1)
  MachineType: czc czc
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true persistent file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash --
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-11-generic N/A
   linux-backports-modules-3.0.0-11-generic  N/A
   linux-firmware                            1.60
  RfKill:
   1: phy1: Wireless LAN
    Soft blocked: no
    Hard blocked: no
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/16/2010
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 080016
  dmi.board.asset.tag: To Be Filled By O.E.M.
  dmi.board.name: czc
  dmi.board.vendor: czc
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: czc
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080016:bd03/16/2010:svnczc:pnczc:pvr1.0:rvnczc:rnczc:rvr1.0:cvnczc:ct3:cvr1.0:
  dmi.product.name: czc
  dmi.product.version: 1.0
  dmi.sys.vendor: czc

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