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posted 2016-03-31 16:23:11 +0200

[Tablet] Unusable Wifi Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

[Tablet] Unusable Wifi Connection while charging (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

[Tablet] [Bug][Tablet] Unusable Wifi Connection while charging (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

[Bug][Tablet] Unusable Wifi Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up

[Bug][Tablet] Unusable Wifi Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up. Though this does not work everytime. Still think this is a driver bug in the kernel.

[Bug][Tablet] Unusable Wifi Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up. Though this does not work everytime. Still think this is a driver bug in the kernel.

Update3: The bug seems to be reproducable everytime when streaming long media streams with gstreamer (e.g. LLs VideoPlayer or a Youtube video on Webcat)

[Bug][Tablet] Unusable Wifi Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up. Though this does not work everytime. Still think this is a driver bug in the kernel.

Update3: The bug seems to be reproducable everytime when streaming long media streams with gstreamer (e.g. LLs VideoPlayer or a Youtube video on Webcat)

Steps to reproduce: 1. Open LLs video player 2. Open https://www.youtube.com/watch?v=tG_lvirWXTg Youtube video stream 3. Hit play

Result: Randomly the stream aborts loading as wifi drops dead

[Bug][Tablet] Unusable Wifi Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up. Though this does not work everytime. Still think this is a driver bug in the kernel.

Update3: The bug seems to be reproducable everytime when streaming long media streams with gstreamer (e.g. LLs VideoPlayer or a Youtube video on Webcat)

Steps to reproduce: 1.

  1. Open LLs video player 2. player
  2. Open https://www.youtube.com/watch?v=tG_lvirWXTg Youtube video stream 3. stream
  3. Hit play

    play

Result: Randomly the stream aborts loading as wifi drops dead

[Bug][Tablet] Unusable Wifi Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up. Though this does not work everytime. Still think this is a driver bug in the kernel.

Update3: The bug seems to be reproducable everytime when streaming long media streams with gstreamer (e.g. LLs VideoPlayer or a Youtube video on Webcat)

Steps to reproduce:

  1. Open LLs video player
  2. Open https://www.youtube.com/watch?v=tG_lvirWXTg Youtube video stream
  3. Hit play

Result: Randomly the stream aborts loading as wifi drops deaddead after some minutes of watching.

[Bug][Tablet] Unusable Wifi Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up. Though this does not work everytime. Still think this is a driver bug in the kernel.

Update3: The bug seems to be reproducable everytime when streaming long media streams with gstreamer (e.g. LLs VideoPlayer or a Youtube video on Webcat)

Steps to reproduce:

  1. Open LLs video player
  2. Open https://www.youtube.com/watch?v=tG_lvirWXTg Youtube video stream
  3. Hit play

Result: Randomly the stream aborts loading as wifi drops dead after some minutes of watching.

Update4: The workaround for this bug (maybe its a hardware issue and not software bug) currently that I found working well for me.

  1. Don't charge with 2A charger (or at least not the one I have here that works with several other devices but reproducably causes issues with the wifi [Its a HP/Palm one originally for the HP Touchpad])
  2. Don't use the tablet during charging. (just let it charge with display off somewhere)

[Bug][Tablet] Unusable Wifi Wifi/Bluetooth Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up. Though this does not work everytime. Still think this is a driver bug in the kernel.

Update3: The bug seems to be reproducable everytime when streaming long media streams with gstreamer (e.g. LLs VideoPlayer or a Youtube video on Webcat)

Steps to reproduce:

  1. Open LLs video player
  2. Open https://www.youtube.com/watch?v=tG_lvirWXTg Youtube video stream
  3. Hit play

Result: Randomly the stream aborts loading as wifi drops dead after some minutes of watching.

Update4: The workaround for this bug (maybe its a hardware issue and not software bug) currently that I found working well for me.

  1. Don't charge with 2A charger (or at least not the one I have here that works with several other devices but reproducably causes issues with the wifi [Its a HP/Palm one originally for the HP Touchpad])
  2. Don't use the tablet during charging. (just let it charge with display off somewhere)

Update 5: Not only wifi is affected also Bluetooth (adapted title to reflect that)

[Bug][Tablet] Unusable Wifi/Bluetooth Connection (drops dead)

While powering the tablet the wifi often after a few minutes just looses connection and refuses to reconnect. Turning it off is working but turning it back on just does nothing. A reboot does not fix it. No wifi connection. Wifi is turned on after a reboot but it does not find anything while searching.

Any tips ?

Update: Now it even dropped without charging and by only playing back some video. Error message I see with dmesg is

CFG80211-ERROR wl_is_linkdown: Link down Reason: WLC_E_LINK

Trying to reconnect gives me

CFG80211-ERROR wl_scan_timeout: timer expired

It seems to me that it is some kind of driver issue.

Update2: Was able to get wifi going again by devel-su and entering ifconfig wlan0 down && ifconfig wlan0 up. Though this does not work everytime. Still think this is a driver bug in the kernel.

Update3: The bug seems to be reproducable everytime when streaming long media streams with gstreamer (e.g. LLs VideoPlayer or a Youtube video on Webcat)

Steps to reproduce:

  1. Open LLs video player
  2. Open https://www.youtube.com/watch?v=tG_lvirWXTg Youtube video stream
  3. Hit play

Result: Randomly the stream aborts loading as wifi drops dead after some minutes of watching.

Update4: The workaround for this bug (maybe its a hardware issue and not software bug) currently that I found working well for me.

  1. Don't charge with 2A charger (or at least not the one I have here that works with several other devices but reproducably causes issues with the wifi [Its a HP/Palm one originally for the HP Touchpad])
  2. Don't use the tablet during charging. (just let it charge with display off somewhere)

Update 5: Not only wifi is affected also Bluetooth (adapted title to reflect that)