Develop Bugs

wifi problem " Unable to scan for networks"

Hi All
could you please anyone can help me , my friend gived me and HTC desire HD
with the problem in wifi , every time he tries to open the wifi it switch off
by itself and gives him the message "unable to scan for networks"
it was rooted and with a custom ROM so i tried re flashing it with the original
ROM but still the same problem .
i read in one the forums threads that if i rename the file
/data/misc/wifi/wpa_supplicant.conf
to wpa_supplicant.bak but still the same issue
any help from you guys please ?

T^A^J said:
Hi All
could you please anyone can help me , my friend gived me and HTC desire HD
with the problem in wifi , every time he tries to open the wifi it switch off
by itself and gives him the message "unable to scan for networks"
it was rooted and with a custom ROM so i tried re flashing it with the original
ROM but still the same problem .
i read in one the forums threads that if i rename the file
/data/misc/wifi/wpa_supplicant.conf
to wpa_supplicant.bak but still the same issue
any help from you guys please ?
Click to expand...
Click to collapse
What does the logcat say when you try to enable wifi? Sounds like the wifi driver is crashing. Might have to start from a clean stock set up

i am also having the same problem???? please post suggestions

Same
i have same problem in my sensation xl .
i do factory reset and change my rom to ics and another rom .. its not solved
help we please

ach1372 said:
i have same problem in my sensation xl .
i do factory reset and change my rom to ics and another rom .. its not solved
help we please
Click to expand...
Click to collapse
and the logcat says?

reply
whats logcat? where is ?
help to find it
so i see this error when im turining on my wifi ,..

ach1372 said:
whats logcat? where is ?
help to find it
so i see this error when im turining on my wifi ,..
Click to expand...
Click to collapse
A logcat is a basic trouble shooting tool. If you are gonna flash custom roms you want to learn to use the tools for when something goes wrong. A search on how to do a logcat will get you started.

hello
im find out how to run logcat .. and then i see this logcat :
E/WifiStateMachine( 1639): Unable to change interface settings: java.lang.Illeg
lStateException: Unable to communicate with native daemon to interface setcfg -
com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0
.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)
D/WifiHW ( 1639): wifi_start_supplicant_common enter: /data/misc/wifi/wpa_supp
icant.conf
I/wpa_ctrl( 1639): [wpa_ctrl_open] ctrl address = 164ae48
D/WifiHW ( 1639): [wifi_connect_to_supplicant] ctrl_conn address=164ae48
I/wpa_ctrl( 1639): [wpa_ctrl_open] ctrl address = 14938d0
I/wpa_supplicant(24221): rfkill: Cannot open RFKILL control device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): nl80211: Could not set interface 'wlan0' UP
E/wpa_supplicant(24221): wlan0: Failed to initialize driver interface
I/logwrapper(24219): /system/bin/wpa_supplicant terminated by exit(255)
E/WifiHW ( 1639): Supplicant not running, cannot connect
E/WifiStateMachine( 1639): Failed to setup control channel, restart supplicant
D/WifiHW ( 1639): wifi_stop_supplicant enter
D/WifiHW ( 1639): wifi_stop_supplicant end rifgt 1
D/PowerManagerService( 1639): acquireWakeLock: PARTIAL_WAKE_LOCK , tag=WifiState
Machine, pid=1639, uid=1000, flags=0x1, mUserState=0x3
V/BatteryStatsImpl( 1639): hold partial wakelock, name=WifiStateMachine, pid=163
9
I/WifiHW ( 1639): wifi_load_driver unload no module
D/WifiStateMachine( 1639): set flash flag=false

ach1372 said:
hello
im find out how to run logcat .. and then i see this logcat :
E/WifiStateMachine( 1639): Unable to change interface settings: java.lang.Illeg
lStateException: Unable to communicate with native daemon to interface setcfg -
com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0
.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)
D/WifiHW ( 1639): wifi_start_supplicant_common enter: /data/misc/wifi/wpa_supp
icant.conf
I/wpa_ctrl( 1639): [wpa_ctrl_open] ctrl address = 164ae48
D/WifiHW ( 1639): [wifi_connect_to_supplicant] ctrl_conn address=164ae48
I/wpa_ctrl( 1639): [wpa_ctrl_open] ctrl address = 14938d0
I/wpa_supplicant(24221): rfkill: Cannot open RFKILL control device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant(24221): nl80211: Could not set interface 'wlan0' UP
E/wpa_supplicant(24221): wlan0: Failed to initialize driver interface
I/logwrapper(24219): /system/bin/wpa_supplicant terminated by exit(255)
E/WifiHW ( 1639): Supplicant not running, cannot connect
E/WifiStateMachine( 1639): Failed to setup control channel, restart supplicant
D/WifiHW ( 1639): wifi_stop_supplicant enter
D/WifiHW ( 1639): wifi_stop_supplicant end rifgt 1
D/PowerManagerService( 1639): acquireWakeLock: PARTIAL_WAKE_LOCK , tag=WifiState
Machine, pid=1639, uid=1000, flags=0x1, mUserState=0x3
V/BatteryStatsImpl( 1639): hold partial wakelock, name=WifiStateMachine, pid=163
9
I/WifiHW ( 1639): wifi_load_driver unload no module
D/WifiStateMachine( 1639): set flash flag=false
Click to expand...
Click to collapse
Ok that could be many things. What rom are you on?

im installing clock work and have backup ....
form offical rom ..
with ics 4
but now im runing ics 4
in the end thanks so much .. for ur reply
is this probably hardware issus ? if this is hardware .. can i solve it?

ach1372 said:
im installing clock work and have backup ....
form offical rom ..
with ics 4
but now im runing ics 4
in the end thanks so much .. for ur reply
is this probably hardware issus ? if this is hardware .. can i solve it?
Click to expand...
Click to collapse
If it is hardware then it will need to be sent I'm for repair. Most likely it is software. Maybe from a bad flash. I would reflash the rom or try a different radio/modem depending on the device.

thanks
can u give me good flash and good radio file
i cant find radio and modem file

Unable to scan for networks
My HTC Desire had the 'unable to scan for networks' problem.
I tried
Factory Reset (This seemed to work for lots of people)
deleting /data/misc/wifi/wpa_supplicant.conf
copying wpa_supplicant.conf from a phone with a working wifi
deleting /data/local or /data/misc
I read tapping the wifi on button quickly worked - and I was that desparate!
New Battery Cover (Has the wifi antenna in)
In the end I got a new upper board (the one with the camera on) and fitted this the wifi works straight away.
If you are looking for this part try HTC DESIRE HD FLEX on ebay

wifi suddenly will not turn on

Well suddenly wiring will not enable on my nexus. Everything else works, I cleared userdata davlik and cache reinstalled my rom and still no go. So I flashed cm9 thinking it was a rom issue but it still will not enable. Any ideas?

Anybody..?

justanothernoob said:
Well suddenly wiring will not enable on my nexus. Everything else works, I cleared userdata davlik and cache reinstalled my rom and still no go. So I flashed cm9 thinking it was a rom issue but it still will not enable. Any ideas?
Click to expand...
Click to collapse
connect device to pc, 'adb logcat >> logcat-1.txt', enable wireless. paste it here so people might try to help you.

Looks to me like its saying wlan0 doesnt exist...
W/CommandListener( 110): Failed to retrieve HW addr for wlan0 (No such device)
D/CommandListener( 110): Setting iface cfg
E/WifiStateMachine( 211): Unable to change interface settings: java.lang.IllegalStateException: Unable to communicate with native daemon to interface setcfg - com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0 0.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)}
D/NetworkManagementService( 211): rsp <213 00:00:00:00:00:00 0.0.0.0 0 [down]>
D/NetworkManagementService( 211): flags <[down]>
I/wpa_supplicant( 2079): rfkill: Cannot open RFKILL control device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2079): nl80211: Could not set interface 'wlan0' UP
E/wpa_supplicant( 2079): wlan0: Failed to initialize driver interface
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiStateMachine( 211): Failed to setup control channel, restart supplicant
D/SoftapController( 110): Softap fwReload - Ok
W/CommandListener( 110): Failed to retrieve HW addr for wlan0 (No such device)
D/CommandListener( 110): Setting iface cfg
D/NetworkManagementService( 211): rsp <213 00:00:00:00:00:00 0.0.0.0 0 [down]>
D/NetworkManagementService( 211): flags <[down]>
E/WifiStateMachine( 211): Unable to change interface settings: java.lang.IllegalStateException: Unable to communicate with native daemon to interface setcfg - com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0 0.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)}
I/wpa_supplicant( 2128): rfkill: Cannot open RFKILL control device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2128): nl80211: Could not set interface 'wlan0' UP
E/wpa_supplicant( 2128): wlan0: Failed to initialize driver interface
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiHW ( 211): Supplicant not running, cannot connect
E/WifiStateMachine( 211): Failed to setup control channel, restart supplicant

justanothernoob said:
Looks to me like its saying wlan0 doesnt exist...
E/WifiStateMachine( 211): Unable to change interface settings: java.lang.IllegalStateException: Unable to communicate with native daemon to interface setcfg - com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0 0.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)}
I/wpa_supplicant( 2128): rfkill: Cannot open RFKILL control device
E/wpa_supplicant( 2128): nl80211: Could not set interface 'wlan0' UP
E/wpa_supplicant( 2128): wlan0: Failed to initialize driver interface
Click to expand...
Click to collapse
Try flashing a custom kernel like franco or fugumod.

I did that didn't fix it. I just put it all back to stock and locked the bootloader. Guess ill send it back...

justanothernoob said:
I did that didn't fix it. I just put it all back to stock and locked the bootloader. Guess ill send it back...
Click to expand...
Click to collapse
yeah, i would do that, if reflashing stock doesn't solve it. if it still happens, lock your bootloader and turn it in.
sorry we couldn't be of more assistance.

Yeah I've reflashed stock and locked boot loader hopefully Negri will rma it for me.

[Q]G2 Wifi issue persists through unroot, ota updates, downgrade, re-root, wipe, etc.

As the thread says, I have a wi-fi problem that seems to persist no matter what I do. I was running g2 slim, and whenever I turned on wi-fi, the phone would go into a restart loop until I turned wi-fi off. When I unrooted, stock froyo also failed to connect, but instead of restarting it just said "failed to search for networks". OTA Gingerbread acted the same as G2Slim, unsurprisingly. Downgrade, re-root, superwipe, and reinstall G2Slim, same problem.
The problem seems to be dependent on a particular access point, I'm guessing someone else's router in my apt. complex. At school I can connect to wi-fi no problem. At home I cannot, even if I use a different router.
In the logcat I see various errors associated with wi-fi, but I am not sure what is significant and what is not. Is there a particular filter I should run with logcat to make troubleshooting wi-fi easier?
Would it be worth to mess around with installing different radios to see if that fixes the problem?

If I'm understanding the output of logcat correct, here is the log from enabling wifi to the fatal exception:
Code:
I/Kineto::main( 2618): Kineto: WifiAppStatusCallback Enter ganMode: 80
I/ActivityManager( 2533): Starting: Intent { act=android.intent.action.MAIN cmp=com.android.settings/.WirelessSettings } from pid 2868
I/ActivityManager( 2533): Displayed com.android.settings/.WirelessSettings: +324ms
I/Kineto::wifi( 2618): onReceive Enter
I/Kineto::wifi( 2618): onReceive Exit
I/Kineto::wifi( 2618): onReceive Enter
I/Kineto::wifi( 2618): handleWifiStateChanged: WIFI_STATE_ENABLED
I/Kineto::main( 2618): Kineto: HandleWifiChangeStatus val: 3
I/Kineto::main( 2618): Kineto: WifiAvailable
I/Kineto::wifi( 2618): onReceive Exit
I/Kineto::main( 2618): handleMessage: 8
I/Kineto::main( 2618): handleMessage (Handler): 8
I/Kineto::main( 2618): Kineto: WIFI_AVAILABLE
I/Kineto::main( 2618): Kineto: InitNotify Enter reason: 8 CurrGanPref: 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
I/wpa_supplicant( 2969): Initial scan channel number: 11
I//system/bin/wpa_supplicant( 2968): ioctl[SIOCSIWPRIV]: No such device
E/wpa_supplicant( 2969): ioctl[SIOCGIFFLAGS]
I//system/bin/wpa_supplicant( 2968): Could not get interface 'eth0' flags
E/wpa_supplicant( 2969): ioctl[SIOCSIWPMKSA]
E/wpa_supplicant( 2969): ioctl[SIOCSIWMODE]
I//system/bin/wpa_supplicant( 2968): Could not configure driver to use managed mode
E/wpa_supplicant( 2969): ioctl[SIOCGIRANGE]
E/wpa_supplicant( 2969): ioctl[SIOCGIWMODE]
E/wpa_supplicant( 2969): ioctl[SIOCSIWAP]
E/wpa_supplicant( 2969): ioctl[SIOCSIWENCODEEXT]
E/wpa_supplicant( 2969): ioctl[SIOCSIWENCODE]
E/wpa_supplicant( 2969): ioctl[SIOCSIWENCODEEXT]
E/wpa_supplicant( 2969): ioctl[SIOCSIWENCODE]
E/wpa_supplicant( 2969): ioctl[SIOCSIWENCODEEXT]
E/wpa_supplicant( 2969): ioctl[SIOCSIWENCODE]
E/wpa_supplicant( 2969): ioctl[SIOCSIWENCODEEXT]
I//system/bin/wpa_supplicant( 2968): ioctl[SIOCGIFINDEX]: No such device
E/wpa_supplicant( 2969): ioctl[SIOCSIWENCODE]
I/wpa_supplicant( 2969): CTRL-EVENT-STATE-CHANGE id=-1 state=0 BSSID=00:00:00:00:00:00
E/wpa_supplicant( 2969): Failed to disable WPA in the driver.
E/wpa_supplicant( 2969): ioctl[SIOCGIWMODE]
E/wpa_supplicant( 2969): ioctl[SIOCSIWAP]
E/wpa_supplicant( 2969): ioctl[SIOCGIFFLAGS]
I/logwrapper( 2968): /system/bin/wpa_supplicant terminated by exit(255)
D/dalvikvm( 2709): GC_CONCURRENT freed 455K, 50% free 2964K/5895K, external 1625K/2137K, paused 8ms+3ms
D/dalvikvm( 2638): GC_EXPLICIT freed 123K, 46% free 3083K/5703K, external 4960K/5610K, paused 65ms
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status, wait 0.1s : WifiState = 3
E/WifiStateTracker( 2533): Can't get status over 2s : WifiState = 3
I/Kineto::main( 2618): KinetoNotify: CurrGanPref: 3 mAppSts: Not Connected to Wi-Fi mAppSts2: Connect to Wi-Fi network to make Wi-Fi calls
I/Kineto::main( 2618): stopAlarmTimer AlarmEvent
E/WifiHW ( 2533): Supplicant not running, cannot connect
E/WifiHW ( 2533): Supplicant not running, cannot connect
E/WifiHW ( 2533): Supplicant not running, cannot connect
V/WifiStateTracker( 2533): Supplicant died unexpectedly
D/WifiStateTracker( 2533): Reset connections and stopping DHCP
E/WifiStateTracker( 2533): Exception caught!
D/WifiStateTracker( 2533): Disabling interface
W/dalvikvm( 2533): threadid=27: thread exiting with uncaught exception (group=0x4001d570)
E/AndroidRuntime( 2533): *** FATAL EXCEPTION IN SYSTEM PROCESS: ConnectivityThread

Tried a handful of radios with G2 Slim, including stock froyo radios, all cause restart loop.

Unfortunately, most likely thing is a HW level issue...
It could be Wifi Calling screwing with things though. Have you tried using wifi without any wifi calling apk or libs?

Alright, well at least I can stop chasing it now.
The unroot procedure I used took me down to pre-OTA Froyo, which doesn't have wifi calling, and it still wouldn't search for networks.

phelixthecat said:
Alright, well at least I can stop chasing it now.
The unroot procedure I used took me down to pre-OTA Froyo, which doesn't have wifi calling, and it still wouldn't search for networks.
Click to expand...
Click to collapse
Anyone able to fix this issue?
It happened after CM 7.2 stable upgrade.
here is what I have tried so far:
1. reset permissions on conf file (and made wifi owner)
2. tried wpa_supplicant starting from shell. Gave error that:
Code:
# wpa_supplicant -Dwext -ieth0 -c/data/misc/wifi/wpa_supplicant.conf -dd
Could not get interface 'eth0' flags
Could not configure driver to use managed mode
ioctl[SIOCGIFINDEX]: No such device
Code:
D/wpa_supplicant( 2012): Initializing interface 'eth0' conf '/data/misc/wifi/wpa_supplicant.conf' driver 'wext' ctrl_interface 'N/A' bridge 'N/A'
D/wpa_supplicant( 2012): Configuration file '/data/misc/wifi/wpa_supplicant.conf' -> '/data/misc/wifi/wpa_supplicant.conf'
D/wpa_supplicant( 2012): Reading configuration file '/data/misc/wifi/wpa_supplicant.conf'
D/wpa_supplicant( 2012): update_config=1
D/wpa_supplicant( 2012): ctrl_interface='eth0'
D/wpa_supplicant( 2012): eapol_version=1
D/wpa_supplicant( 2012): ap_scan=1
D/wpa_supplicant( 2012): fast_reauth=1
D/wpa_supplicant( 2012): Initializing interface (2) 'eth0'
E/wpa_supplicant( 2012): ioctl[SIOCGIFFLAGS]
E/wpa_supplicant( 2012): ioctl[SIOCSIWPMKSA]
E/wpa_supplicant( 2012): ioctl[SIOCSIWMODE]
E/wpa_supplicant( 2012): ioctl[SIOCGIRANGE]
E/wpa_supplicant( 2012): ioctl[SIOCGIWMODE]
E/wpa_supplicant( 2012): ioctl[SIOCSIWAP]
D/wpa_supplicant( 2012): WEXT: Operstate: linkmode=1, operstate=5
D/wpa_supplicant( 2012): Failed to add interface eth0
D/wpa_supplicant( 2012): wpa_driver_wext_set_key: alg=0 key_idx=0 set_tx=0 seq_len=0 key_len=0
E/wpa_supplicant( 2012): ioctl[SIOCSIWENCODEEXT]
D/wpa_supplicant( 2012): Driver did not support SIOCSIWENCODEEXT, trying SIOCSIWENCODE
E/wpa_supplicant( 2012): ioctl[SIOCSIWENCODE]
D/wpa_supplicant( 2012): wpa_driver_wext_set_key: alg=0 key_idx=1 set_tx=0 seq_len=0 key_len=0
E/wpa_supplicant( 2012): ioctl[SIOCSIWENCODEEXT]
D/wpa_supplicant( 2012): Driver did not support SIOCSIWENCODEEXT, trying SIOCSIWENCODE
E/wpa_supplicant( 2012): ioctl[SIOCSIWENCODE]
D/wpa_supplicant( 2012): wpa_driver_wext_set_key: alg=0 key_idx=2 set_tx=0 seq_len=0 key_len=0
E/wpa_supplicant( 2012): ioctl[SIOCSIWENCODEEXT]
D/wpa_supplicant( 2012): Driver did not support SIOCSIWENCODEEXT, trying SIOCSIWENCODE
E/wpa_supplicant( 2012): ioctl[SIOCSIWENCODE]
D/wpa_supplicant( 2012): wpa_driver_wext_set_key: alg=0 key_idx=3 set_tx=0 seq_len=0 key_len=0
E/wpa_supplicant( 2012): ioctl[SIOCSIWENCODEEXT]
D/wpa_supplicant( 2012): Driver did not support SIOCSIWENCODEEXT, trying SIOCSIWENCODE
E/wpa_supplicant( 2012): ioctl[SIOCSIWENCODE]
D/wpa_supplicant( 2012): State: DISCONNECTED -> DISCONNECTED
I/wpa_supplicant( 2012): CTRL-EVENT-STATE-CHANGE id=-1 state=0 BSSID=00:00:00:00:00:00
D/wpa_supplicant( 2012): wpa_driver_wext_set_operstate: operstate 0->0 (DORMANT)
D/wpa_supplicant( 2012): WEXT: Operstate: linkmode=-1, operstate=5
D/wpa_supplicant( 2012): wpa_driver_wext_set_wpa
D/wpa_supplicant( 2012): WEXT: SIOCSIWAUTH(param 7 value 0x0) failed: No such device)
E/wpa_supplicant( 2012): Failed to disable WPA in the driver.
D/wpa_supplicant( 2012): wpa_driver_wext_set_drop_unencrypted
D/wpa_supplicant( 2012): WEXT: SIOCSIWAUTH(param 5 value 0x0) failed: No such device)
D/wpa_supplicant( 2012): wpa_driver_wext_set_countermeasures
D/wpa_supplicant( 2012): WEXT: SIOCSIWAUTH(param 4 value 0x0) failed: No such device)
D/wpa_supplicant( 2012): No keys have been configured - skip key clearing
D/wpa_supplicant( 2012): Cancelling scan request
D/wpa_supplicant( 2012): Cancelling authentication timeout
E/wpa_supplicant( 2012): ioctl[SIOCGIWMODE]
E/wpa_supplicant( 2012): ioctl[SIOCSIWAP]
D/wpa_supplicant( 2012): WEXT: Operstate: linkmode=0, operstate=6
E/wpa_supplicant( 2012): ioctl[SIOCGIFFLAGS]

[Q] Wifi suddenly not working anymore

So today i found out i can't connect to internet anymore with my kindle. I tried flashing several roms (three different cm9 builds, modaco) but no dice... Here's the logcat of what happens when i turn on the wifi:
Code:
E/WifiStateMachine( 170): Failed to reload STA firmware java.lang.IllegalStateException: Error communicating to native daemon
W/CommandListener( 113): Failed to retrieve HW addr for wlan0 (No such device)
D/CommandListener( 113): Setting iface cfg
E/WifiStateMachine( 170): Unable to change interface settings: java.lang.IllegalStateException: Unable to communicate with native daemon to interface setcfg - com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0 0.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)}
D/wpa_supplicant( 1057): wpa_supplicant v0.8.x-android-4.0.4_r1.2-48-gd933a3a
D/wpa_supplicant( 1057): Initializing interface 'wlan0' conf '/data/misc/wifi/wpa_supplicant.conf' driver 'nl80211' ctrl_interface 'N/A' bridge 'N/A'
D/wpa_supplicant( 1057): Configuration file '/data/misc/wifi/wpa_supplicant.conf' -> '/data/misc/wifi/wpa_supplicant.conf'
D/wpa_supplicant( 1057): Reading configuration file '/data/misc/wifi/wpa_supplicant.conf'
D/wpa_supplicant( 1057): update_config=1
D/wpa_supplicant( 1057): ctrl_interface='wlan0'
D/wpa_supplicant( 1057): ap_scan=1
D/wpa_supplicant( 1057): fast_reauth=1
D/wpa_supplicant( 1057): Could not open file /sys/class/net/wlan0/phy80211/name: No such file or directory
I/wpa_supplicant( 1057): rfkill: Cannot open RFKILL control device
D/wpa_supplicant( 1057): nl80211: RFKILL status not available
D/wpa_supplicant( 1057): nl80211: Set mode ifindex 0 iftype 2 (STATION)
D/wpa_supplicant( 1057): nl80211: Failed to set interface 0 to mode 2: -19 (No such device)
D/wpa_supplicant( 1057): nl80211: Try mode change after setting interface down
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
D/dalvikvm( 904): GC_FOR_ALLOC freed 2304K, 49% free 4369K/8519K, paused 17ms
D/dalvikvm( 904): GC_CONCURRENT freed 2K, 28% free 6163K/8519K, paused 2ms+3ms
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
D/dalvikvm( 904): GC_FOR_ALLOC freed 742K, 29% free 6328K/8839K, paused 15ms
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1057): nl80211: Failed to set interface down
D/wpa_supplicant( 1057): nl80211: Interface mode change to 2 from 0 failed
D/wpa_supplicant( 1057): nl80211: Could not configure driver to use managed mode
E/wpa_supplicant( 1057): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 1057): nl80211: Could not set interface 'wlan0' UP
E/wpa_supplicant( 1057): wlan0: Failed to initialize driver interface
D/wpa_supplicant( 1057): Failed to add interface wlan0
D/wpa_supplicant( 1057): Cancelling scan request
D/wpa_supplicant( 1057): Cancelling authentication timeout
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiStateMachine( 170): Failed to setup control channel, restart supplicant
E/WifiStateMachine( 170): Failed to reload STA firmware java.lang.IllegalStateException: Error communicating to native daemon
W/CommandListener( 113): Failed to retrieve HW addr for wlan0 (No such device)
D/CommandListener( 113): Setting iface cfg
E/WifiStateMachine( 170): Unable to change interface settings: java.lang.IllegalStateException: Unable to communicate with native daemon to interface setcfg - com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0 0.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)}
D/wpa_supplicant( 1103): wpa_supplicant v0.8.x-android-4.0.4_r1.2-48-gd933a3a
D/wpa_supplicant( 1103): Initializing interface 'wlan0' conf '/data/misc/wifi/wpa_supplicant.conf' driver 'nl80211' ctrl_interface 'N/A' bridge 'N/A'
D/wpa_supplicant( 1103): Configuration file '/data/misc/wifi/wpa_supplicant.conf' -> '/data/misc/wifi/wpa_supplicant.conf'
D/wpa_supplicant( 1103): Reading configuration file '/data/misc/wifi/wpa_supplicant.conf'
D/wpa_supplicant( 1103): update_config=1
D/wpa_supplicant( 1103): ctrl_interface='wlan0'
D/wpa_supplicant( 1103): ap_scan=1
D/wpa_supplicant( 1103): fast_reauth=1
D/wpa_supplicant( 1103): Could not open file /sys/class/net/wlan0/phy80211/name: No such file or directory
I/wpa_supplicant( 1103): rfkill: Cannot open RFKILL control device
D/wpa_supplicant( 1103): nl80211: RFKILL status not available
D/wpa_supplicant( 1103): nl80211: Set mode ifindex 0 iftype 2 (STATION)
D/wpa_supplicant( 1103): nl80211: Failed to set interface 0 to mode 2: -19 (No such device)
D/wpa_supplicant( 1103): nl80211: Try mode change after setting interface down
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
D/dalvikvm( 904): GC_FOR_ALLOC freed 1051K, 31% free 6296K/9095K, paused 15ms
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
D/dalvikvm( 904): GC_FOR_ALLOC freed 1005K, 31% free 6338K/9095K, paused 15ms
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
D/wpa_supplicant( 1103): nl80211: Failed to set interface down
D/wpa_supplicant( 1103): nl80211: Interface mode change to 2 from 0 failed
D/wpa_supplicant( 1103): nl80211: Could not configure driver to use managed mode
E/wpa_supplicant( 1103): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 1103): nl80211: Could not set interface 'wlan0' UP
E/wpa_supplicant( 1103): wlan0: Failed to initialize driver interface
D/wpa_supplicant( 1103): Failed to add interface wlan0
D/wpa_supplicant( 1103): Cancelling scan request
D/wpa_supplicant( 1103): Cancelling authentication timeout
D/OpenGLRenderer( 266): Flushing caches (mode 0)
So... is there any way to fix this or can i just throw it out of the window and simply buy a more reliable tablet (Asus' Nexus 7 comes to mind right now...)?

Wifi quit working any solutions

So my wifi was working fine monday after noon.....come home that night and it will not turn on. The only thing i though could be the culprit was the kernel i just flashed. I installed a known working kernel and it still would not come on. Did odin to stock still same result. Searched for hours for a solution and could only find a few posts of the same type of issues on various forums. So was wondering was this ever found to be a known issue or is a occasional defect............below is my logcat for the wifi, which i get no matter what rom or kernel im on.
W/CommandListener( 108): Failed to retrieve HW addr for wlan0 (No such device)
D/CommandListener( 108): Setting iface cfg
D/NetworkManagementService( 170): rsp <213 00:00:00:00:00:00 0.0.0.0 0 [down]>
D/NetworkManagementService( 170): flags <[down]>
E/WifiStateMachine( 170): Unable to change interface settings: java.lang.Illega
lStateException: Unable to communicate with native daemon to interface setcfg -
com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0 0
.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)}
I/wpa_supplicant( 2221): rfkill: Cannot open RFKILL control device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): Could not read interface wlan0 flags: No such device
E/wpa_supplicant( 2221): nl80211: Could not set interface 'wlan0' UP
E/wpa_supplicant( 2221): wlan0: Failed to initialize driver interface
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiHW ( 170): Supplicant not running, cannot connect
E/WifiStateMachine( 170): Failed to setup control channel, restart supplicant
D/SoftapController( 108): Softap fwReload - Ok
W/CommandListener( 108): Failed to retrieve HW addr for wlan0 (No such device)
D/NetworkManagementService( 170): rsp <213 00:00:00:00:00:00 0.0.0.0 0 [down]>
D/NetworkManagementService( 170): flags <[down]>
D/CommandListener( 108): Setting iface cfg
E/WifiStateMachine( 170): Unable to change interface settings: java.lang.Illega
lStateException: Unable to communicate with native daemon to interface setcfg -
com.android.server.NativeDaemonConnectorException: Cmd {interface setcfg wlan0 0
.0.0.0 0 [down]} failed with code 400 : {Failed to set address (No such device)}

Midday bump for freshness
Sent from my Galaxy Nexus using xda premium

criptix said:
So my wifi was working fine monday after noon.....come home that night and it will not turn on. The only thing i though could be the culprit was the kernel i just flashed. I installed a known working kernel and it still would not come on. Did odin to stock still same result. Searched for hours for a solution and could only find a few posts of the same type of issues on various forums. So was wondering was this ever found to be a known issue or is a occasional defect............below is my logcat for the wifi, which i get no matter what rom or kernel im on.
Click to expand...
Click to collapse
See http://code.google.com/p/android/issues/detail?id=28036. The only partial workaround I've found is rooting, installing https://play.google.com/store/apps/details?id=com.fardjad.android.wifixmanager and rebooting/power cycling only when the wifi has been turned off successfully.