Develop Bugs

WiFi hangs when switched on

Hi folks,
Since last thursday I've got a problem with my WiFi on my wildfire. Every time I turn on the WiFi (via not. bar or settings) the little box is ticked but it does not scan or anything. A couple of seconds later I get the message that the WiFi process in the settings app is not responding together with the option to kill the process. Is my WiFi broken now? Or is there a fix?
Thanks in advance
P.S. I'm using CM7 7.1.0

Try flashing the latest nightly or the 7.1.0.1 update.
http://forum.xda-developers.com/showthread.php?t=1143125
Sent from my HTC Wildfire using xda premium

Scratch0805 said:
Try flashing the latest nightly or the 7.1.0.1 update.
http://forum.xda-developers.com/showthread.php?t=1143125
Sent from my HTC Wildfire using xda premium
Click to expand...
Click to collapse
It doesn't work. When I boot after applying the update after the bootanimation there's just a black screen. It hangs. I pulled the bat and tried it again but the same...

Usually this can be solved by wiping the dalvik cache, have you tried that?

henkdv said:
Usually this can be solved by wiping the dalvik cache, have you tried that?
Click to expand...
Click to collapse
I managed to update CM7 to 7.1.0.1, but Wi-Fi is still not working! It just hangs after switch-on. And the weirdest thing of all is that it just happened, I dind't change anything or install any new apps...

Try reflashing the radio?

3xeno said:
Try reflashing the radio?
Click to expand...
Click to collapse
Reflashed the radio, still no progress It just wont find any wifi networks and after leaving the settings app the WiFi is turned off automatically (or the app hangs and the same happens) Any other suggestions?

By the way, WiFi-Tethering does work. Still confused about this weird problem :S

Try this in a root shell (enter "su" at the prompt) with wifi enabled:
ip link set up eth0
Though the name might be different on your rom, it's commonly named "wlan0" (eth0 is usually a physical ethernet device). You can find out by running
ip link show
With wifi disabled and enabled, see what new device comes up or disappears. It doesn't hurt to test a name, as long as it isn't "lo" (the loopback device).
After setting the link state, re-scan for APs.

henkdv said:
Try this in a root shell (enter "su" at the prompt) with wifi enabled:
ip link set up eth0
Though the name might be different on your rom, it's commonly named "wlan0" (eth0 is usually a physical ethernet device). You can find out by running
ip link show
With wifi disabled and enabled, see what new device comes up or disappears. It doesn't hurt to test a name, as long as it isn't "lo" (the loopback device).
After setting the link state, re-scan for APs.
Click to expand...
Click to collapse
Could you explain these steps? I'm not so familiar with terminal inputs and especially IP adresses. Whats more strange is that my Wi-Fi disconnects automatically when leaving the Wi-Fi menu and that it doesn't show my saved accesspoints (once connected but not now). Isn't this a software problem?

tobitronics said:
Could you explain these steps?
Click to expand...
Click to collapse
Sure, here's the html formatted manual page. A relevant excerpt:
ip link set - change device attributes
dev DEVICE
DEVICE specifies network device to operate on. When configuring
SR-IOV Virtual Fuction (VF) devices, this keyword should specify
the associated Physical Function (PF) device.​
up and down
change the state of the device to UP or DOWN.​
Click to expand...
Click to collapse
When the device is down, it won't scan. Some ROMs have a different tool installed as /system/bin/ip though, just typing "ip" will tell you.
tobitronics said:
Whats more strange is that my Wi-Fi disconnects automatically when leaving the Wi-Fi menu and that it doesn't show my saved accesspoints (once connected but not now).
Click to expand...
Click to collapse
The saved networks aren't shown when wifi is turned off. It likely fails to enable the device and does this before attempting to read the saved networks, as this should never happen it might be related to the radio firmware on your phone. See this thread for the list of radio firmware versions. As for disconnecting when you leave the WifiSettings activity, wait a bit longer to see if it stays connected. There's definitely no intentional disconnect in the onPause handler.
tobitronics said:
Isn't this a software problem?
Click to expand...
Click to collapse
I see no reason to believe the contrary.

henkdv said:
Sure, here's the html formatted manual page. A relevant excerpt:When the device is down, it won't scan. Some ROMs have a different tool installed as /system/bin/ip though, just typing "ip" will tell you.The saved networks aren't shown when wifi is turned off. It likely fails to enable the device and does this before attempting to read the saved networks, as this should never happen it might be related to the radio firmware on your phone. See this thread for the list of radio firmware versions. As for disconnecting when you leave the WifiSettings activity, wait a bit longer to see if it stays connected. There's definitely no intentional disconnect in the onPause handler. I see no reason to believe the contrary.
Click to expand...
Click to collapse
I've tried your steps. When setting the IP link to up after switching on WiFi and then enter 'show' i get a whole page of numbers and complicated text, but in each line the State is specified as 'DOWN' or 'UNKNOWN'. It also says something about a loop? When I leave the terminal then to check if WiFi is still on, I find it turned off. When I turn it back on and then let the terminal show, sometimes I get 'DORMANT' and sometimes I get 'DOWN'. I also tried your suggestion about leaving the client on, it stays on for about a minute before it automatically disconnects or gives me the message that the system app is not responding. My radio is already up to date (I even reflashed it twice). And what was that link 'WiFiSettings activity'. I came to a website with lots of code and got immediately confused . I hope this problem can be solved....

tobitronics said:
When setting the IP link to up after switching on WiFi and then enter 'show' i get a whole page of numbers and complicated text, but in each line the State is specified as 'DOWN' or 'UNKNOWN'.
Click to expand...
Click to collapse
This is the RFC2863 state of the interface which is seldom relevant, the actual link state is between < and >.
tobitronics said:
It also says something about a loop?
Click to expand...
Click to collapse
That would be the loopback device. It is always present and its parameters are the same across nearly all Linux kernels, one might be funny and try to change the mtu, queueing discipline or address but it's pointless to do so.
tobitronics said:
When I leave the terminal then to check if WiFi is still on, I find it turned off. When I turn it back on and then let the terminal show, sometimes I get 'DORMANT' and sometimes I get 'DOWN'.
Click to expand...
Click to collapse
According to the documentation, DORMANT means
Interface is L1 up, but waiting for an external event, f.e. for a protocol to establish. (802.1X)
Click to expand...
Click to collapse
This could indicate a problem with wpa_supplicant rather then the radio firmware. Try to connect to an open AP such as the ones at the local Bakker Bart, NS station, McDonalds or T-Mobile shop.
tobitronics said:
I also tried your suggestion about leaving the client on, it stays on for about a minute before it automatically disconnects or gives me the message that the system app is not responding. My radio is already up to date (I even reflashed it twice). And what was that link 'WiFiSettings activity'. I came to a website with lots of code and got immediately confused .
Click to expand...
Click to collapse
It is the actual source code to "Wi-Fi settings" where you normally see the list of networks.

Thanks for your explanation. So what should I do/try now? I was thinking about reinstalling the settings.apk and settingsprovider.apk ....
Sent from my HTC Wildfire using XDA App

Like I said, try an open 802.11a/b/g access point.

henkdv said:
Like I said, try an open 802.11a/b/g access point.
Click to expand...
Click to collapse
I tried that at the McDonald's and it didn't want to search for available networks, so I couldn't connect

Go to settings > Wireless & Networks. Disable this option
Mobile network
Use phone for data connection when Wi-Fi is unavailable
It should change to
Mobile network
Connect to the Internet

Try going to /data/misc/wifi and rename the wpa_supplicant.conf to wpa_supplicant.conf.bak and try again, the system will recreate the file.
Sent from my HTC Wildfire using XDA App

Takudenatsu said:
Try going to /data/misc/wifi and rename the wpa_supplicant.conf to wpa_supplicant.conf.bak and try again, the system will recreate the file.
Sent from my HTC Wildfire using XDA App
Click to expand...
Click to collapse
IT WORKSSS!!!! Thank you all for your help. That such a small little text file could cause such a large annoying problem. I hope it won't happen again...
Sent from my HTC Wildfire using XDA App

could you write how?

[SOLVED] CM7 | Wifi needs a minute to connect | started with nightlys about Jan.

Hi all,
having troubles with my Wifi. It needs a minute to connect and doesn't connect when screen is off eventhough settings are to always on.
I started asking in CM7 nightly thread about my problem but it's better to have a new thread for that.
So far I didn't find a solution.
I tried:
- replace tiwlan_drv.ko with new one by deleting old one
- compared wpa_supplicant, tiwlan.ini and other data in that folder without significant outcome
- tried old 2011.11.16-nightly where it still worked
Anyone got an idea what I have to copy from my old nightly where it still worked?
This is what happened:
measel said:
sorry, for bringing this up again, since I'm the only one having this issue but I just collected a few logs. maybe someone has a clue what is going on there:
Code:
2012-02-13-19-35-37_wifion.txt > when turning wifi on it needs more than a minute to connect
2012-02-13-19-37-37_wifiscan.txt > wifi instantly connects after starting 'wifi analyzer' app or open the wifi settings window
2012-02-13-19-45-25_wifiscreenoff.txt > when screen is of, wifi doesn't connect eventhough settings are to "always on"
/edit: ok i just tried to read the logs myself and I think you can't really see any reason for that behaviour... am i right that the possible settings I have to look for are in the 'tiwlan.ini'?
Maybe someone provide me a backup of his/her tiwlan.ini for comparison... (I don't have any idea what I'm doing but that doesn't mean I couldn't try. )
I added my tiwlan.ini as well
/edit: compared to tiwlan.ini: no differences. Must be something else.
Click to expand...
Click to collapse
measel said:
Could you please check your logs if it needs exactly a minute to connect? could be a proof that there is some setting involved.
Click to expand...
Click to collapse
measel said:
I just went back to an older version: 2011-11-16 and the problem was gone.
Thank you.
/edit: Ok might have bin the wrong folder... did it have to be /data/misc/wifi/? Argh it's hard when one knows nothing. :|
/edit2: I'm so sorry: I compared wrong files and folders (system and data). I come back here, when I really found something. *shame on me*
Click to expand...
Click to collapse
[] AL [] said:
I'd just copy the module tiwlan_drv.ko [in /system/lib/module] from that older nightly and replace it on the newer build first.
Don't forget to set its permissions afterwards..
You can do this with RootExplorer or with Terminal (from the app tray) by entering these 5 lines:
Code:
su
cd /system/lib/module
mount -o remount,rw /system/
chmod 644 tiwlan_drv.ko
chown 0.0 tiwlan_drv.ko
and reboot.
Click to expand...
Click to collapse

none of these solutions worked right?
I have wifi problems too. Wifi in CM7 is crap

No wifi problems here... I'm using my personal home wifi network most of the time, but other networks works well too.
Red lense German Vodafone Froyo based
CM7.2 Nightly 02102012

I have this issue if I configure my Router security to WPA. With open I can connect immediately

crakeron said:
none of these solutions worked right?
I have wifi problems too. Wifi in CM7 is crap
Click to expand...
Click to collapse
can't really say that. It's great in 111116-nightly so I just wanna figure out what I have to change to get the speed back!
Motorola Defy CM72120121, german Froyo base

I have this problem, too.
Nobody else?
Would be great if some devs could please look this up.

SOLUTION
Hello all,
first off: delete wpa_supplicant and everything is fine!
I gave up and did a factory reset/wipe data. After that it worked w/o problems.
> Now I will restore all my apps and check if it's still working afterwards. > still working
> restore wifi access points > NOT WORKING ANYMORE!
> with shame I delete wpa_supplicant > WORKS AGAIN!
I'm so ashamed. :/ Should have done that like months ago.
I go back to my backup and try it there. > deleting the wpa_supplicant worked!!!!

My Wifi has a problem with WRT54G Wireless Router, with Froyo Stock ROM and CM7.1 RC1.5-jordan.
WIFI connect, signal is good but connection is very slow.
On notebooks, the connection is faster with this same router.
In another Wireless routers connection is normal from Defy. The problem is only between Defy x Linksys WRT54G.
I have set Defy and Router to work only in G mode, but the problem persist.
With the same configurations the problem don´t occour with another routers from D-link, Cisco or other.
Anyone know how can I solve it?
Tnks.

[Q] [HELP]My Kindle Fire Won't Turn Wifi On

last night I was reading online comics and it suddenly not respond so I force it restart and it was worse. My kindle cannot recognize my touching.
It is strange that TWRP still works. Restoring doesn't helps, too.
So I wipe it all(except for sdcard) and install various cm9 and cm7 with corresponding kernels from hashcode with no luck. Cm9 is ok but without wifi. Cm7 just wont respond.
Also I tried using TWRP to go back to pure stock and wifi still not working. So I redo all the root, twrp again.
Finally I fix permissions and install cm7 aka now it's screen recognize my touching but the wifi still cannot be turned on.
Is it possible wifi chip has been broken?
Any one can help me, THANKS!?

hey everyone, do u have any suggestions......
now, as long as I open wifi it goes dead. I don't know what to do. Is it possible that due to heavy use the chip gets break down?

I was wondering what remains the same after I flash roms. Because installing zip has formatted boot, data and system.
I hard off the device when the wifi went wrong. And the application in which led to this situation cannot be reinstalled(install said OK but openning it the screen was black, still responding to button savior).
So maybe the problem lies in the internal storage that is unchangeable. Any one helps!? Or should I contact amazon CS?

Half of the old apk is probably left in data/app
Happened to me once.
Sent from my E10i using XDA

aloy99 said:
Half of the old apk is probably left in data/app
Happened to me once.
Sent from my E10i using XDA
Click to expand...
Click to collapse
But why the wifi still cannot be turned on? yes, it is when I using the app the wifi connection seems to be unstable, and I pressed the power button for 20 seconds.
Thanks for your reply.

would try to clean up the wifi configuration:
turn wifi off
look for /data/misc/wifi/wpa_supplicant.conf
open the file and delete everything except the first two lines, they are:
ctrl_interface=tiwlan0
update_config=1
Click to expand...
Click to collapse
this is for stock rom - for cm7 it has to be simmilar
turn wifi on again
hope this helps ...

b63 said:
would try to clean up the wifi configuration:
turn wifi off
look for /data/misc/wifi/wpa_supplicant.conf
open the file and delete everything except the first two lines, they are:
this is for stock rom - for cm7 it has to be simmilar
turn wifi on again
hope this helps ...
Click to expand...
Click to collapse
Thanks all the same.
I used root explorer to search for wap_supplicant.conf since it's not in that folder and delete everything except the first two lines. (forget to mention that my wifi just shows turning on and I can't do anything, flash new roms won't help.)
Then I reboot it the result remains same.......

did you try to restart your router ?
because i have this sometimes with the stock rom - wifi tries to connect and can't - all my other devices work fine - i use to reboot to router and the kf is connecting immediately again

b63 said:
did you try to restart your router ?
because i have this sometimes with the stock rom - wifi tries to connect and can't - all my other devices work fine - i use to reboot to router and the kf is connecting immediately again
Click to expand...
Click to collapse
I'm sure it has nothing to do with my router. because I live on campus and use school wifi. wifi is in the state of turning on since booting. regardless of flashing new roms.
thanks for your reply.

just closing out all known issues ...
but nearly running out of ideas at this point
maybe something on your sdcard partition ? - i know it sounds crazy but i had a case where the fresh installed rom did not start until he copied the whole sdcard partition to computer as a backup and deleted everything (besides .android_secure and twrp folder)

b63 said:
just closing out all known issues ...
but nearly running out of ideas at this point
maybe something on your sdcard partition ? - i know it sounds crazy but i had a case where the fresh installed rom did not start until he copied the whole sdcard partition to computer as a backup and deleted everything (besides .android_secure and twrp folder)
Click to expand...
Click to collapse
I can only think of files remain unchangeable when flashing roms or wifi chip burned(hope not).
Anyway idea about the internal files with respect to wifi issues?
BTW, I didn't find the half installed app or any other files in data/app

ｔｕｒｌｙ２２１ said:
Anyway idea about the internal files with respect to wifi issues?
Click to expand...
Click to collapse
no - sorry - maybe do a logcat and look for something that gives a hint in the right direction

b63 said:
no - sorry - maybe do a logcat and look for something that gives a hint in the right direction
Click to expand...
Click to collapse
actually I'm just a noob. I don't know how to do a logcat and how to find the problem.

as you can't download it from the market, attached here is a logcat program
install it and you'll see a lot of debug lines - be shure to make or let make the kf a wifi connection attempt - save the log and attach it as .txt file to the thread - i'll take a look if i can see something to track down your problem

the thing is the wifi is turning on by default. no matter what I do. do u mean use some app which needs wifi?

b63 said:
as you can't download it from the market, attached here is a logcat program
install it and you'll see a lot of debug lines - be shure to make or let make the kf a wifi connection attempt - save the log and attach it as .txt file to the thread - i'll take a look if i can see something to track down your problem
Click to expand...
Click to collapse
it seems like the wifi is still turning on so I just open catlog and wait a few seconds and save it.

puh - was a long one - did'nt find something that will bring you further
03-18 18:43:55.148 I/SystemServer(1447): NetStat Service
03-18 18:43:55.148 I/SystemServer(1447): NetworkManagement Service
03-18 18:43:55.156 I/SystemServer(1447): Connectivity Service
03-18 18:43:55.156 I/ConnectivityService(1447): hostname has been set: cm7
03-18 18:43:55.171 I/WifiService(1447): WifiService starting up with Wi-Fi enabled
Click to expand...
Click to collapse
means the service starts
03-18 18:47:56.273 I/GoogleSearch(1655): Not connected to network.
Click to expand...
Click to collapse
tells us no news ...
and force closes a bit later
but there is never a connection attempt - strange ...

now I wonder which files are associated with wifi status in internal storage. some files must have been changed.

im kinda curious if you find a fix. ive been struggling with terrible wifi connection with my kindle. itll turn on, but it constantly turns off then after a while wont connect anymore. just says obtaining wifi then doesnt connect just shows saved wifi connection. im almost to the point of giving it away. not sure if amazon will help me out, and i wouldnt sell it to someone if i know it has wifi connection issues. i try to reset my router and it helps for a little bit, but then goes back to the issues i had

paranoid android85 said:
im kinda curious if you find a fix. ive been struggling with terrible wifi connection with my kindle. itll turn on, but it constantly turns off then after a while wont connect anymore. just says obtaining wifi then doesnt connect just shows saved wifi connection. im almost to the point of giving it away. not sure if amazon will help me out, and i wouldnt sell it to someone if i know it has wifi connection issues. i try to reset my router and it helps for a little bit, but then goes back to the issues i had
Click to expand...
Click to collapse
seems like we have different issues. Mine is turning on without any connection or list of available networks. Have you tried reboot, forget all networks or so on?

[SOLUTION] [I927] GPS fix in Poland

Hello,
i try many solutions to fix GPS in my I927 (orginal AT&T ICS rom): first GPS Doctor from Google Play store (no results ), then i root my phone i try change gps.conf in etc folder. I try many gps.conf configuration - still no effect (GPS fix 4-5 minutes). Finally i got idea... My Wife hat Samsung Galaxy S Advance from polish distribution with polish clear JB ROM (updated by Samsung kies). I try copy with my Wife's phone files AGPS_CA.pam, GPS.conf and SIRFGPS.conf to my phone....
and it worked :victory: Now i catch GPS fix in 7 sec.
SOLUTION STEP BY STEP:
1.You need rotted I927 phone (soluition in this thread)
2. copy from my PC files AGPS_CA.PAM, GPS.CONF and SIRFGPS.CONF (files below) via Bluetooth to my Phone
3. i copy with Root Browser from Google Play (may be any Root Explorer) files AGPS_CA.PAM, GPS.CONF and SIRFGPS.CONF system/etc folder (overwrite -> yes)
4. i turn on GPS Doctor (I bought this earlier) click "Manual Fix Option", then "advanced operation" and i cleaned all the items one by one (Clear Almanac Data, clear Ephemeris Data ....)
5. I turn off my phone (no reset - turn off) and go outside my house to place in which there is an unobstructed view of the sky
6. I turn on my phone and run GPS Checker from Google Play (i downloada this earlier) and wait for FIX (this take 149 sec.)
7. tur off and turn on GPS Checker and now i catch Fix in 7 sec. :highfive: i turn on Google Navigation and i catch fix
also in a few seconds.
I think that SIRFGPS.CONF is very important for the proper functioning of the GPS.In my opinion GPS.CONF does not play a big role here (as You see in my files ntp server is still set to north america)
I hope you GPS work now properly.
greetings.
P.S. Sorry for my english

kamykkamyk_pl said:
1.You need rotted I927 phone
Click to expand...
Click to collapse
LOL
Anyway, good steps, I may have to look into SIRFGPS.conf as I'm also having problems with GPS.

Ja uzywam fastergps i rowniez szybko sie laczy.
Sent from my SGH-I927 using xda app-developers app

However, the correct settings NTP help ...
I decide to try my device in the field.
I turn on GPS .... and got FIX (in gps checker) after 106 seconds.
Also i change i GPS.CONF ntp server to polish and put GPS.CONF in to system/etc folder and repeat steps 4 -6
4. i turn on GPS Doctor (I bought this earlier) click "Manual Fix Option", then "advanced operation" and i cleaned all the items one by one (Clear Almanac Data, clear Ephemeris Data ....)
5. I turn off my phone (no reset - turn off) and go outside my house to place in which there is an unobstructed view of the sky
6. I turn on my phone and run GPS Checker from Google Play ... and wait for FIX...
Click to expand...
Click to collapse
First FIX take 4-5 minutes, but now i catch GPS Fix in 15-30 sec. i try this in random places in my City (distant from each other by about 5 km).
Now i have visible 6 - 11 satelites and fix catch 4-7 satelites.
i think now its all good.
I changed the gps.conf file in the package for the Polish ntp settings. But anyone can edit in GPS.CONF the ntp for your country
LIst of NTP servers You can find in official NTP POLL PROJECT

This solution works for ICS ? You wrote that you took sirfgps file from JB phone.
Your sirfgps:
Code:
PROJECT=SAMSUNG_STE
[B]UART_DRIVER=/dev/ttyAMA1[/B]
RESET_GPIO=/sys/class/sec/gps/GPS_nRST/value
ONOFF_GPIO=/sys/class/sec/gps/GPS_ON_OFF/value
JB 4.2.2 sirfgps:
Code:
PROJECT=SAMSUNG_TEGRA
[B]UART_DRIVER=/dev/ttyHS0[/B]
RESET_GPIO=/sys/devices/virtual/sec/gps/GPS_nRST/value
ONOFF_GPIO=/sys/devices/virtual/sec/gps/GPS_PWR_EN/value

winotu said:
This solution works for ICS ? You wrote that you took sirfgps file from JB phone.
Your sirfgps:
Code:
PROJECT=SAMSUNG_STE
[B]UART_DRIVER=/dev/ttyAMA1[/B]
RESET_GPIO=/sys/class/sec/gps/GPS_nRST/value
ONOFF_GPIO=/sys/class/sec/gps/GPS_ON_OFF/value
JB 4.2.2 sirfgps:
Code:
PROJECT=SAMSUNG_TEGRA
[B]UART_DRIVER=/dev/ttyHS0[/B]
RESET_GPIO=/sys/devices/virtual/sec/gps/GPS_nRST/value
ONOFF_GPIO=/sys/devices/virtual/sec/gps/GPS_PWR_EN/value
Click to expand...
Click to collapse
Hi,
some time ago i turn on GPs in my I927, nad have no response. GSP not turn on.
I realized that it was caused paths to folders. My settings were wrong:
UART_DRIVER=/dev/ttyAMA1[/B]
RESET_GPIO=/sys/class/sec/gps/GPS_nRST/value
ONOFF_GPIO=/sys/class/sec/gps/GPS_ON_OFF/value
Click to expand...
Click to collapse
I changed the settings in the original file sirfgps.conf from I927 to the same as in S Advance, but I left the original path:
PROJECT=SAMSUNG_TEGRA_ATT
UART_DRIVER=/dev/ttyHS0
RESET_GPIO=/sys/devices/virtual/sec/gps/GPS_nRST/value
ONOFF_GPIO=/sys/devices/virtual/sec/gps/GPS_PWR_EN/value
Click to expand...
Click to collapse
Now GPS work fine, catch FIX ~15 sec. but always before i use GPs i restart first phone. I think that sometimeswhen i use Task Killer, some GPS process is off.. Anyway reset phone, start gps and this is OK.
I change file to download to new with rigth settings.
greetings

[Q] Wifi Not Working On Cyanogenmod 11 - T989

I was able to install CM11. Flashed cm11 on 12/7 and everything has been working great. I was able to update everything. On next morning, wifi signal was there but no access to internet. Wifi is on but it picks up no wifi signals. If I turn on/ off wifi doesn't find anything else. And receive WPS has failed error... if I click in refresh.
I have already daily upgrade nightly builds to up to date build (20131217), but success. same issue. Any idea?
If I do a full wipe and then restore a backup it work for a day, then stops again.

I have the same problem. I dropped the phone on the wooden floor, and thought the wifi just broke, but now I'm confident it's because of bugs in cm11
Considering returning to cm10.3
LE:
Installed BeanStalk with no data/cache wipe and WiFi is still not working.

gust989 said:
I was able to install CM11. Flashed cm11 on 12/7 and everything has been working great. I was able to update everything. On next morning, wifi signal was there but no access to internet. Wifi is on but it picks up no wifi signals. If I turn on/ off wifi doesn't find anything else. And receive WPS has failed error... if I click in refresh.
I have already daily upgrade nightly builds to up to date build (20131217), but success. same issue. Any idea?
If I do a full wipe and then restore a backup it work for a day, then stops again.
Click to expand...
Click to collapse
I updated mine to 1/14/2014 CM11 Nightly and still no Wifi. Anyone have the same experience?

I had the same problem. You can try wiping all data, reinstalling ROM and gapps. Everything but the camcorder works!
Sent from my SAMSUNG-SGH-T989 using xda app-developers app

it solved !!!! ...
Hi to all
I had this problem and i could fix it.
afret install CM 11, go to this address : settings/wi-fi/advanced/wi-fi region code
and change it to fix. for me it works on Europe.
I hope it be useful.
If it works for you, give me Thanks ...

Will try as we speak. Thanks for sharing.
---------- Post added at 08:55 PM ---------- Previous post was at 08:13 PM ----------
I just upgraded to cm 11 build .17 and Wifi just doesnt turn on.
It says turning on... and just hangs.
I've set region to Europe to no avail..

I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 0. Reboot and then you should have wifi working again.

value
adrscu said:
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 0. Reboot and then you should have wifi working again.
Click to expand...
Click to collapse
Thanks, that worked great. but the setting reverted back to "1" on its own , i changed it back to "0" working again but any idea how to keep it from reverting back?
The value only reverted the one time, hasn't been an issue again.

Samsung Galaxy S Advance - Cyanogenmod 11 wifi connection problem
adrscu said:
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 0. Reboot and then you should have wifi working again.
Click to expand...
Click to collapse
Downloaded SQlite debugger. Cannot find Setting Storage. Please help.

adrscu said:
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 1. Reboot and then you should have wifi working again.
Click to expand...
Click to collapse
This totally worked for me. But it stops, and the problem is back again. Checking the settings.db shows it has returned to 0. (wtf!)
Not sure what to do at this point. It's nice to know it's not hardware.

thanks!
i had the same problem. this guide solved my problem. thanks.

Fixed my network problem by removing ad-hoc network
Hey,
I had a problem when I tried to connect to an ad-hoc network I'd setup. The network settings screen would freeze up on me and then..... nothing. I checked the database settings by adb'ing onto my phone (a rooted oppo find 5 by the way). I checked the values of the settings database as described by others. That didn't work so then went to the file containing connection details of known wifi networks
Code:
sudo ./adb shell
[email protected]:/ $ su
1|[email protected]:/ # cd /data/misc/
[email protected]:/data/misc/wifi # ll
First I start a shell on my phone (sudo ./adb shell), then I change from a regular user into the superuser (su) then I go to the directory containing the wifi connection info.
There I opened the file wpa_supplicant.conf and removed the ad-hoc connection that caused my problems. I've also read about people simply removing the file. Downside of that is that you will loose your painstakingly acquired history of known passwords (but I guess in the end that is still better then not having a wifi connection at all....)
Hope this helps somebody
Cheers!

Hi
I have installed cyanogenmod 12 beta 10 on my galaxy s2 i9100
there is no country code option in wifi advance setting.
how can I get my wifi worked?

Rydermuff said:
Thanks, that worked great. but the setting reverted back to "1" on its own , i changed it back to "0" working again but any idea how to keep it from reverting back?
The value only reverted the one time, hasn't been an issue again.
Click to expand...
Click to collapse
May I ask for a absolute path of "settngs.db" file, please? By the way, have you fixed the issue with reverting?
Thank you.

SAHRSOFT said:
Hi to all
I had this problem and i could fix it.
afret install CM 11, go to this address : settings/wi-fi/advanced/wi-fi region code
and change it to fix. for me it works on Europe.
I hope it be useful.
If it works for you, give me Thanks ...
Click to expand...
Click to collapse
Hi Sahrsoft, where are these options on CM 12 (lollipop)? Thanks!!

Hi guys,
Just wanted to tell you that setting wifi_display_on to 0 didn't work for me. Full reset did the trick on my GS4 GT-i9505

adrscu said:
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 0. Reboot and then you should have wifi working again.
Click to expand...
Click to collapse
Thanks so much dude! I was so close to resetting my phone and this worked perfectly! To those of you who got lost on this I'll try to describe it better... Download SQlite debugger from Play Store or on your PC then transfer the apk to your phone and install Open the app, then press 'App' and scroll down to 'Setting Storage', then 'setttings.db', then 'global', then 'name', now scroll down to 'wifi_display_on' and edit the value to 0, make sure you commit this change by pressing the arrow icon in the top right and accepting. Now reboot and turn on your WIFI!

SAHRSOFT said:
Hi to all
I had this problem and i could fix it.
afret install CM 11, go to this address : settings/wi-fi/advanced/wi-fi region code
and change it to fix. for me it works on Europe.
I hope it be useful.
If it works for you, give me Thanks ...
Click to expand...
Click to collapse
thank you !