[Q] Wifi Can't Turn On - Android Q&A, Help & Troubleshooting

My CoreX2 Tab with Jelly Bean,
i have tried wpa_supplicant for enable adhoc wifi access,
but now can't turn on Wifi,
How to Reset this?
pls reply

your gonna need to find completely stock rom.flash it and everything should be fine. wifi issues can come from a variety of things if their changed in the system. its really hard to pin it down if you dont have the same device. Did you merge the new wpa or open and edit. you might try returning back to stock config.wipe caches and run fix permissions.

Related

[Q] wifi won't pull ip address

I used One click to unroot, I used rom manager by clockworkmod, to install obsidian 4.2 and now my wifi will not pull an ip address. If I try I have to reboot the phone to get the data network to come back up. I tried re-flashing and it didn't work. Am I missing a fix that is out there? Every search I complete I get info about wifi calling...not interested in that, I just want my wifi to work(makes updating at home a much faster process)
Thanks BabyGirlYoyo
I upgraded to Obsidian v5 beta and it worked...It fixed my wifi!

After offical Kies 2.3.5 update, my Wifi Hotspot settings no longer save

Hello all,
I'm on three uk and updated to 2.3.5 via Kies yesterday. All fine, a definite improvement to 2.3.4.
But there is a problem, when i go to portable hotspot settings the Network SSID has been reset as 'AndroidAP' and the password is something random.
I can change it, but it doesn't stick. Sometimes it will persist for that 'session' but after i close and exit the hotspot configuration it will get reset back to AndroidAP.
I've noticed a few other people have this problem, it seems to be caused by the permissions getting messed up on the /data/misc/wifi/softap.conf file (as seen http://forum.xda-developers.com/showthread.php?t=1301996).
what i want to know, is there *any* way i can reset the permissions on this file or fix this problem without performing a factory reset or by rooting my phone? the feature still works, but it's really, really, annoying as i use it quite a lot.
is there any way i access this file via the sdk or in debug mode without rooting my phone?
please help!

[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

[Q] Get wifi back after factory reset

Hey guys,
How can one restore his wifi connection after all the ROM updates, rooting, etc. Apparently, the wifi needs some sort of software installation?
Bluetooth works perfectly. Wifi scans, finds, asks for password but does not connect.
I'm a newbie, please explain in simple terms. thanks
Hey there, first make sure you are using the correct password .
If you use doomelord's kernel you have to flash his WiFi module... Get it from here
http://db.tt/SkTqfr0w
send from the dark side!

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