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[Launchpad Bug Tracker <1386863@xxxxxxxxxxxxxxxxxx>]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: bcmwl (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1386863

Title:
  Wireless does not reconnect after modprobe or sleep in Lenovo T440
  Ubuntu 14.10,  Realtek Semiconductor Co., Ltd. RTL8192EE PCIe Wireless
  Network Adapter

Status in “bcmwl” package in Ubuntu:
  Confirmed

Bug description:
  Hi,

  I have installed Ubuntu 14.10 on my new laptop (64 bits) on Oct. 25
  and I got my laptop on Oct. 24, 2014, but after running "modprobe -r
  r8192ee" command and "modprobe r8192ee", where "r8192ee" is the name
  of my wireless module, my wireless connection cannot reconnect to the
  internet, even though it finds the wireless networks and tries to
  reconnect but it fails. I actually notice this bug after my laptop
  went to sleep mode (by closing its lid) and then it was unable to
  reconnect to wireless again. The only I can solve it now is by
  restarting.

  I have tried it with AP at my home which the router is nearby and with
  AP at my university which is public. In both cases it happends. I do
  not have any other problem with these APs with the other laptop I
  have.

  The wireless hardware in my laptop (Lenovo T440) was not working at
  all in Ubuntu 14.04, I have teseted it in this week, and it was
  reported as a confirmed bug. I could not run "upstream's compat-
  wireless backports".

  Here are the details about it:

  uname -a ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Linux mahsa-ThinkPad-T440 3.16.0-23-generic #31-Ubuntu SMP Tue Oct 21 17:56:17 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

  
  lspci -vvxxx ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8192EE PCIe Wireless Network Adapter
  	Subsystem: Realtek Semiconductor Co., Ltd. Device 001b
  	Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
  	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort+ <TAbort- <MAbort- >SERR- <PERR- INTx-
  	Latency: 0, Cache Line Size: 64 bytes
  	Interrupt: pin A routed to IRQ 64
  	Region 0: I/O ports at 3000 [size=256]
  	Region 2: Memory at f0400000 (64-bit, non-prefetchable) [size=16K]
  	Capabilities: <access denied>
  	Kernel driver in use: r8192ee
  00: ec 10 8b 81 07 04 10 08 00 00 80 02 10 00 00 00
  10: 01 30 00 00 00 00 00 00 04 00 40 f0 00 00 00 00
  20: 00 00 00 00 00 00 00 00 00 00 00 00 ec 10 1b 00
  30: 00 00 00 00 40 00 00 00 00 00 00 00 ff 01 00 00

  
  dmesg (After running modprobe -r r8192ee and modprobe r8192ee)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  [  125.586281] wlan0: deauthenticating from f4:7f:35:cc:f6:71 by local choice (Reason: 3=DEAUTH_LEAVING)
  [  125.622205] cfg80211: Calling CRDA to update world regulatory domain
  [  125.630473] cfg80211: World regulatory domain updated:
  [  125.630476] cfg80211:  DFS Master region: unset
  [  125.630478] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
  [  125.630480] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  125.630482] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  125.630484] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  125.630485] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  125.630487] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  138.859714] cfg80211: Calling CRDA to update world regulatory domain
  [  138.872238] cfg80211: World regulatory domain updated:
  [  138.872240] cfg80211:  DFS Master region: unset
  [  138.872241] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
  [  138.872243] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  138.872244] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  138.872245] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  138.872246] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  138.872247] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
  [  138.878321] r8192ee: module is from the staging directory, the quality is unknown, you have been warned.
  [  138.879407] mem mapped space: start: 0xf0400000 len:00004000 flags:00140204, after map:0xffffc90004ff8000
  [  138.879418] Pci Bridge Vendor is found index: 0
  [  138.879420] pcidev busnumber:devnumber:funcnumber:vendor:link_ctl 3:0:0:10ec:0
  [  138.879421] pci_bridge busnumber:devnumber:funcnumber:vendor:pcie_cap:link_ctl_reg:amd 0:28:1:8086:40:40:0
  [  138.879441] Boot from EFUSE
  [  138.886730] dev_addr: 38:b1:db:00:1b:9b
  [  138.886735] RT Customized ID: 0x12
  [  138.887501] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
  [  138.887743] cfg80211: Calling CRDA for country: EC
  [  138.887777] rtlwifi: wireless switch is on
  [  138.888325] r8192ee 0000:03:00.0: irq 64 for MSI/MSI-X
  [  139.587122] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
  [  139.587167] cfg80211: Regulatory domain changed to country: EC
  [  139.587169] cfg80211:  DFS Master region: unset
  [  139.587170] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
  [  139.587172] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
  [  139.587173] cfg80211:   (5170000 KHz - 5250000 KHz @ 20000 KHz), (300 mBi, 1700 mBm), (N/A)
  [  139.587175] cfg80211:   (5250000 KHz - 5330000 KHz @ 20000 KHz), (300 mBi, 2300 mBm), (0 s)
  [  139.587175] cfg80211:   (5735000 KHz - 5835000 KHz @ 20000 KHz), (300 mBi, 3000 mBm), (N/A)
  [  149.723735] wlan0: authenticate with f4:7f:35:dd:e1:c1
  [  150.390674] wlan0: direct probe to f4:7f:35:dd:e1:c1 (try 1/3)
  [  150.593636] wlan0: direct probe to f4:7f:35:dd:e1:c1 (try 2/3)
  [  150.797653] wlan0: direct probe to f4:7f:35:dd:e1:c1 (try 3/3)
  [  151.001675] wlan0: authentication with f4:7f:35:dd:e1:c1 timed out
  [  166.155577] wlan0: authenticate with f4:7f:35:f7:29:d1
  [  166.823724] wlan0: direct probe to f4:7f:35:f7:29:d1 (try 1/3)
  [  167.027908] wlan0: direct probe to f4:7f:35:f7:29:d1 (try 2/3)
  [  167.231945] wlan0: direct probe to f4:7f:35:f7:29:d1 (try 3/3)
  [  167.435952] wlan0: authentication with f4:7f:35:f7:29:d1 timed out
  [  182.580710] wlan0: authenticate with f4:7f:35:f6:9e:d1
  [  183.248770] wlan0: direct probe to f4:7f:35:f6:9e:d1 (try 1/3)
  [  183.450239] wlan0: direct probe to f4:7f:35:f6:9e:d1 (try 2/3)
  [  183.654202] wlan0: direct probe to f4:7f:35:f6:9e:d1 (try 3/3)
  [  183.858252] wlan0: authentication with f4:7f:35:f6:9e:d1 timed out
  [  199.016228] wlan0: authenticate with f4:7f:35:cc:f6:71
  [  199.683511] wlan0: direct probe to f4:7f:35:cc:f6:71 (try 1/3)
  [  199.884523] wlan0: direct probe to f4:7f:35:cc:f6:71 (try 2/3)
  [  200.088554] wlan0: direct probe to f4:7f:35:cc:f6:71 (try 3/3)
  [  200.292604] wlan0: authentication with f4:7f:35:cc:f6:71 timed out

  Thank you for your help.

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