Suddenly i cant use wifi on android 5.1 - Galaxy S III Q&A, Help & Troubleshooting

Hi, im using dokdo rom, android 5.1(arter97 kernel ver 4.1) and everything was okay until this morning. I wanted to connect wifi but i realised that wifi cant be open from setting. Wifi status is off but it says turning wifi on. Go to Status i see that IP, wifi, BT are both unavailable athough they were ok yesterday( yesterday i used them). BT is okay, i can find other devices and pair with them. Can some help me? i tried to factory reset and reflash rom but nothing happened

Related

wifi stoped working at all!! check rom v4

I installed check rom revoHD v4 and wifi just stopped working. When i activate it, it says its activating, it turns on and a few seconds lates it turnos off. It never gets a mac adress.
I tried changin kernels (siyah 2.51), and modems with no luck. Anyone has an idea how to fix it?
Thanks
(everything else seems to be working fine, bluethooth gps etc)
cross84 said:
I installed check rom revoHD v4 and wifi just stopped working. When i activate it, it says its activating, it turns on and a few seconds lates it turnos off. It never gets a mac adress.
I tried changin kernels (siyah 2.51), and modems with no luck. Anyone has an idea how to fix it?
Thanks
(everything else seems to be working fine, bluethooth gps etc)
Click to expand...
Click to collapse
What kind of security is your wifi modem is having? is it wps smthng lk that? Did you tried with different wifi hotspots?
it doesnt have any security, i disable it
The thing is that it doesn even recognize that there is a wifi signal, it just turn off automatically before without detecting any wifi signal, i tried at work and the same thing happened
(sorry if i misspelled a lot of words jejeje)
try to flash another ROM and see if it works...
Sent from my GT-I9100 using XDA premium app
i restored the backup i made with cwm and everything works fine now (touch x-power rom), and if i reinstall check rom the wifi goes out again, it seems it deletes something that leaves me with no wifi mac adress (i searched in about the phone, turning on and of wifi and every time it said not available)
Bizarre...
im getting the same thing, did anyone find a solution?
had this same exact issue.. it is a hardware problem.. so changing rom, kernel or fw wont help you at all... only solution is going to samsung service center.. my problem was solved in 3 days..so many s2 users have this problem..
take a look at these threads...
http://forum.xda-developers.com/showthread.php?t=1169338&page=5
http://forum.xda-developers.com/showthread.php?t=1316507
There are a lot of problems with KK5 and wifi. If you update Busybox it borks it completely. I can't connect to my 5Ghz home wifi but the 2.4 Ghz works fine. I also can't connect to some wifi that uses WEP. All works fine with previous builds. I have seen threads that suggest replacing the wpa_suplicant file from Android 2.3.5 fixes the problem.

wifi problems

Hello
First of all, sorry my english
I had installed on my Gratia the version of cyanogenmod 7.2 that comes in that thread
http://forum.xda-developers.com/showthread.php?t=1430267
concretely 2/10/12 revisiĆ³n
It works perfectly, but there is a little issue with wifi
When i connected to a wifi point and i exit from its range, and enter in other wifi range that i had stored in my wifi connections, phone not connect automatically to that other wifi while phone is locked. but i had to connect it mannually unlocking the phone.
In the original rom, when i was near my home, for example, phone connects automatically to my home wifi
In other hand, when i connected to a wifi and the wifi not detect activity, it disconnect from acces point, although i have put to never the sleep polytics of wifi. This problem is solved partialy because i install an app from market that make a ping every minute to a extern ip, then wifi detects activity and no sleeps.
A friend tell me that there is an update called "baseband" that update the part of android that controls radio connections, and this update can solve this problem.
I search that update in xda forums and find this thread
http://forum.xda-developers.com/showthread.php?t=1153385&highlight=baseband
but when i try to update it with clockworkmod recovery it tells me that the update is in an old version previous to android 1.5. (amend) and abort the process.
I dont know how to solve problem.
Thanks

[Question] MiniCM7-2.1.9 wifi not working

I'm on the latest nAa kernel, using MiniCM7-2.1.9, but wifi just doesn't work. I can browse the internet using my 3G connection, just not wifi for some reason.
Wifi shows it's connected, the signal bars is full but it just doesn't download any data, it's like it's not connected at all. It's able to get an IP address and the link speed is good but it just doesn't get any data.....
I've tried searching through different posts and tried solutions such as:
http://forum.xda-developers.com/showpost.php?p=21766413&postcount=498
as well as the instruction to fix wifi in the Troubleshooting page here:
http://code.google.com/p/minicm/wiki/Troubleshooting
and this:
http://forum.xda-developers.com/showpost.php?p=22170822&postcount=817
I also cleaned the dalvik cache by going into recovery, reboot and still doesn't work.
and they all don't work....
UPDATE:
OK nvm it works now. I reflashed the kernel, wipe data & factory reset and then reflash the rom, and now it works. It's the exact same thing I did for the past 30 mins, except this time I also reflashed the kernel. I just hope it'll continue working.....
UPDATE 2:
Ok, now it's not working again. I rebooted the phone twice, and it was able to connect to wifi no problem. But then later on it stopped working again, I didn't install or change anything either.
I also noticed that whenever I'm connected to wifi on my phone, the wifi on my PC will timeout and drop connection. If I then try to connect wifi on my PC, then the wifi on my phone will timeout. Basically, I can't connect both at the same time.
But all my other devices work fine. My Motorola Milestone and my mom's HTC Desire Z works fine. My iPod Touch works fine, I've NEVER had a wifi issue with any of my devices until I tested out my new Xperia X10 Mini Pro today.......
I haven't tried testing it on stock rom & kernel, because the first thing I did was to unlock the bootloader and flash the nAa kernel + MiniCM7-2.1.9. And I can't be bothered flashing back to stock since I won't be staying on stock anyway, especially after setting up everything already so I can't really be bothered.....
Anyway, so I then tried to delete wpa_supplicant.conf in data/misc/wifi (as mentioned above) and this time it shows "Error" under Wi-Fi settings.
This is really annoying me....
One note about wpa_supplicant.conf (/data/misc/wifi/wpa_supplicant.conf). In stock kernel with MiniCM Pro from paul-xxx the right ctrl_interface was wlan0.
nAa kernel (with MiniCM from nAa) needs tiwlan0.
So it isn't necessery to delete file with all wifi networks when changing kernel/ROM but one value in config file.
ya, except the value was tiwlan0 already, I tried changing it back to wlan0 and nothing happens. So then I tried deleting it, and now whenever I try to turn Wifi on it just shows Error.
What's actually strange about this is that I've backed up the original file, and when I restored it and tried to turn Wifi on, it turns on but doesn't display any network.
Before, it would display tons of networks, and it would connect to my router (but doesn't download data for some reason). It doesn't work but at least you can tell it's able to detect networks.
Now, it doesn't even show any networks. The only way to fix this is to restore from recovery or do a wipe......
Ok so I did some research and could this be the case?
http://www.youtube.com/watch?v=DwYOtf4fI0Q
I've also tried to assign static IP but it still doesn't work. I went into my router and checked the ARP, and it shows this:
IP address Flags MAC Address Device
192.168.1.2 Complete 00:18E:48:42:C9 br0
192.168.1.3 Complete 00:E0:4C:A3:8B:A8 br0
192.168.1.6 Incomplete 18:87:96:FE:16:3E br0
192.168.1.5 Complete 48:5D:60:3B:5E:5D br0
Click to expand...
Click to collapse
where 192.168.1.6 is assigned to my phone. I'm not that good with router stuff but know the basics, does anyone know what I need to configure?
I'm having the same problem with my mini pro
Decaptivated Slamsung
nowseewhatudid said:
I'm having the same problem with my mini pro
Decaptivated Slamsung
Click to expand...
Click to collapse
I haven't had time to try this out yet, but maybe you wanna give it a try? Scroll to "PROBLEMS WITH WIFI?" in this topic here:
http://forum.xda-developers.com/showthread.php?t=1066824

[Q] Wifi does not work after upgrading to ICS

Upgraded Galaxy S2 to latest ICS update available in India.
But after that Wifi is not working properly. WAP2 authentication is not happening properly.
Wifi analyzer shows good signal strength.
No notification for wifi shown in top bar. But in notification dropdown wifi is full green.
tried battery remove, wifi sleep policy change, password change and *# code to reset driver.
Any other help?
thanks
rohan
Are you sure the password you entered is correct? Because this problem shouldn't occur if you're on the official firmware and kernel. This MAY happen if you're rooted and have a custom ROM installed which is in a BETA state. This is normally a problem related to the kernel itself. You should probably try restoring your phone if the WIFI doesn't work at all. Or maybe you can restart the phone again and there might be a fix.
doing a factory reset also might help... it helped me in my case.
which from you upgrading ,via KIES or ODIN.try to download firmware then flash via ODIN.i m had the same case first time come to ICS.
sorry for my bad english
Some solution
I updated using Kies.
BTW, I have some work around, for anyone interested.
On wifi router disable WEP encryption (not WPA), in that case S2 can connect to wifi properly.
But when WEP encryption AES or any other is enabled, it cannot connect to wifi.
-Rohan

Need help please: WIFI stuck on 'turning on'. MAC Address - Unavailable

Hi everyone.
I have not been using my Mi Pad 1 for quite some time now. Recently, my brother installed an app that allows him to disable other users from connecting into the wifi. He stopped using the tablet because the wifi detects the network but does not connect (stuck with "saved"). I tried removing the SD card and restoring factory settings but still did not work. I also tried connecting it to a different ISP but it didn't work. All other devices are connecting to the home wifi with no problems.
I flashed the tablet with CWM and cyanogenmod 11 on both systems 1 and 2. Same thing. I was detecting Wifi but not able to connect.
I have also tried modifying the router settings as usually suggested by other users. Still not connected.
I also tried renaming WPA_supplicant.conf to WPA_supplicant.bak - it did not work as well
I have tried draining the battery completely and charging it again until 100% charged. Righty now, the tablet wifi is stuck on "turning on" status.
This is actually my first time doing a root, custom recovery and custom ROM install. I am really impressed by the guides posted here in XDA. I really hope there's still a solution to my problem.
Thanks for all the help!
*******I don't think it is a hardware issue because the tablet still detects available networks and is able to connect to bluetooth devices.
Hello.. Did you fix your issue?

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