Database Users

[Q] Ad-hoc wpa_supplicant hack: Obtaining IP address loop.

Hi, I recently made an attempt to enable ad-hoc connectivity to my Acer Iconia Tab using this guide: http://forum.xda-developers.com/showthread.php?t=1060909&highlight=ad+hoc
After following these instructions I was able to connect to my phone through barnacle and I was able to surf the web on my tablet. Both Wifi and Ad-hoc were working right after I replaced my wpa_supplicant file and everything was working perfectly but around 30 minutes later when taking my tablet out of sleep I attempted to connect to my Wifi connection but it gets to "obtaining IP address" for about 4 seconds then rapidly says "disconnecting" and then back to "obtaining IP address". It does this 7 times before disabling the connection and staying on "scanning".
I have tried replacing the wpa_supplicant file with my original but the only differences that i have noticed are that it does not detect my phones ad-hoc connection and that it does the Ip address and disconnecting loop for a total of 10 times before disabling my Wifi connection.
My tablet is rooted and running the official android version 3.1.
I am using ES File Explorer to move and replace the wpa_supplicant file and to change the permissions for the modified wpa_supplicant file.
So, i was wondering if anyone else has the same problem or a solution of any kind. I was also wondering if anyone would be willing to share their stock wpa_supplicant file for the Acer iconia for 3.1 honeycomb

Download the wifi fix file on Acers support site.

FloatingFatMan said:
Download the wifi fix file on Acers support site.
Click to expand...
Click to collapse
I tried this but when running the patch the android robot appears with gears in it's center appears for a few seconds and then the gears get replaced my a warning sign and exclamation mark.
I have tried re-formatting my sd card and unrooting before running the patch but my initial problem persists along with the exclamation mark on each attempt to apply the patch. Decrypting the file results in corrupting the file and making it unable to extract it's contents.

I d/loaded the patch direct to my tab and ran it inside android. You might've curupting the file moving it.but strange

I'm having the same trouble Today. Finally got it to tether with barnacle. After doing that once I Now get the endless loop of "obtaining IP". I am at work so cannot check other wifi yet but will when I get home.
Sent from my MB860 using Tapatalk

Another fix that may work is deleting the file dhcpcd-wlan0.lease located in /data/miscellaneous/dhcp

Thanks, I ended up just restoring but if I run into this problem again I'll definitely try that

Downloading the Wifi Fix directly from Acer seemed to do the trick for me. At least for connecting to my home wifi. I'll be testing tethering at work again today to see if it repeats the problem, but hopefully it does not.

wpa supplicant for ad hoc use
Hello everyone. I am new to the forum, but have been reading the posts for over a month. I bought my Acer Iconia A500 to be more convenient than lugging around my 17" laptop. After purchasing was when I realized that I couldn't tether it to my JB iPhone 3gs. Started searching and learned how to root the tablet. Mine came with HC3.1. Rooted the tablet, found an alternant wpa-supplicaant file, followed the instructions, and pleasantly surprised that I could then tether to my phone. THEN Acer sent an ota update (4.010.11_com_Gen) I accidentally installed the update before unrooting. Messed everything up, and had to do a factory reset. After the reset I rooted again. Everything working fine until I tried to find the wpa file again. Couldn't find the same one. Used a different one. Followed the same steps as before and suddenly my wifi went wacko. Wouldn't stay connected, kept looping. Very frustrating. Undid the wpa and could connect to regular wifi. Did more research and found the original ad hoc file. Used it and now have no problem connecting and disconnecting. MORAL TO THE STORY: use the wpa supplicant ad hoc file that has XOOM in the file name. I would have saved myself a weeks worth of frustration had I just kept looking.
Btw....I tried all the 'fixes posted and nothing helped the looping until I rooted and used the correct supplicant file.
Good luck!

tesab613 said:
Btw....I tried all the 'fixes posted and nothing helped the looping until I rooted and used the correct supplicant file.
Click to expand...
Click to collapse
Could you share the file? I have one but it doesn't work so I reverted to stock.

bpivk said:
Could you share the file? I have one but it doesn't work so I reverted to stock.
Click to expand...
Click to collapse
The file attached to the first post here:http://forum.xda-developers.com/showthread.php?t=1060909&highlight=ad+hoc worked perfectly after I did factory reset. But instead of following those instructions to the letter make sure you turn on airplane mode or disable wifi before messing with the original file (renaming it to wpa_supplicant.old) and setting the permissions of the modified wpa_supplicant file to User:RWE Group:RWE Other:RW only.
I also restarted my tablet before enabling wifi just in case and my tablet has been connecting to ad-hoc and wifi connections without any issues whatsoever even after multiple restarts.

Order things went down for me were, upgrade to the OTA update from Acer... Then I rooted, used the ad-hoc wifi thinger, tethered once before getting endless loop. Then I downloaded the wifi fix directly from Acer, installed it via sd card as they say and I have not had any issues since. Tethered as I type this, 3rd time today as well.
I'm not sure if using the ad-hoc then acer update changed anything, but it works great now.
Sent from my A500 using Tapatalk

Vereynn said:
Another fix that may work is deleting the file dhcpcd-wlan0.lease located in /data/miscellaneous/dhcp
Click to expand...
Click to collapse
A500 here too and ran into same loop issue. Deleting the lease file worked like a champ, thanks! Rooted stock 3.1, haven't installed latest Acer update.
WT

I am also getting the looping IP address (DHCP) after applying the wpa_supplicant as directed. I tried to reset the Acer A500 with a pin two times like it was listed on Acer.com. That did not fix it. I tried to delete the dhcpcd-wlan0.lease but could not find it anywhere. I don't have a /data/miscellaneous directory. Only found /data/misc/ and that did not have the lease file. I then tried the wifi patch from Acer and then updated to version 4.*^*.13 (latest update) but it is still looping. Does anyone have any ideas? Is it possible I got the wrong wpa_supplicant that has a problem? I am now able to see ad-hoc networks as well as my router but with the looping problem.
Thanks,
Rich

this also happened to me
This happens to me when I switch networks.I turn off wifi del the saved networks,reboot then turn wifi back on and resetup my wifi password.I do not know a better solution.some claim this is worse with some routers.

Can't obtain ip address
Hi I'm having trouble with my sons acer iconia b1 when he first go it everything worked perfectly until I went onto it a few weeks back it isn't connecting to wifi and is saying that the IP address is unavailable. I have tried everything it has had factory reset I reset the router everything I could think of I done it. I know it's not te router as my other son has th same tablet and his works perfectly. The only thing I can think of is he has went into it and done something and I don't know how to get it back. I'm at the point where I'm close to throwing it at a wall as it's frustrating me so much
Thanks

NC Wifi not working in Cm7 and stock

I am running cm7 ver. 7.0.3-encore of my sd card. And I am having some issue with my nook color since this moring.
When I turned on wifi it didn't show the little wifi icon in the status bar, so I checked in the wireless & networks settings, it showed that the wifi was scanning. And this is where it stuck.
I turned on and off the Airplne Mode, it started working again after that. I even used it for some time.
But now when I tried connecting wifi again on my NC it showing the same problem i.e. stuck in scanning mode without the little wifi icon.
I tried agin with the Airplane Mode but this time it did not work.
I remove the sd card and boot to stock, even in stock it does not connect to the wifi. The wifi shows as enabled but it cannot connect to my home network.
I looked noline but cant find any solutions specific to my problem. Is anyone having such a problem with their wifi on NC??
FYI the bluetooth is working so i guess its more of a software issue than a hardware one, but i could be wrong.
what should i do to fix this problem??

Try standing right next to a wifi router and see if you get anything. There's a possibility that there's something wrong with the antenna.

Go into the wifi settings and delete all of the access points. Reboot and try again.

patruns said:
Go into the wifi settings and delete all of the access points. Reboot and try again.
Click to expand...
Click to collapse
this worked perfectly.... wifi is working from both the systems i.e. stock and sd card cm7...
just for my knowledge... y did this happen??

I sometimes have to go through the steps of deleting my access point. I just always assumed it was my crap router or at the least a mix of nook and my crap router.

ok this is getting irritating... it worked for 2 days... this is crap...
now its not working... same problem... no wifi icon and stays in scanning mode for sometime...
repeating the previous fix does not work...
why is this happening???

Try upgrading to the latest nightly and then fix permissions in rom manager.
Sent from my LG Optimus V using Tapatalk

koopakid08 said:
Try upgrading to the latest nightly and then fix permissions in rom manager.
Sent from my LG Optimus V using Tapatalk
Click to expand...
Click to collapse
y doesn't it work in stock??
and if its a cm7 problem then y is it creating problem in the stock??

koopakid08 said:
Try upgrading to the latest nightly and then fix permissions in rom manager.
Click to expand...
Click to collapse
i updated the CM7 but still getting the issues...

please help me guys... the problem still persists..

Forget all remembered networks.l and then reboot.
Sent from my NookColor using Tapatalk

Wireless "Disabled" - help

I just recently got this tablet from someone else. (This person had no problems and is trustworthy in reporting all that was done and care taken with it, even offering on advice on things you can do with it.)
My first step was to connect to Wifi. This happened without problems.
When returning home from work where I also connected, my wireless connection(s) said "Disabled" after trying to obtain the IP where they worked fine before. The first time this happened I had to do a factory reset to solve it (hardware reset didn't do it).
Today, it is happening again. I woke it from "standby" to start using again at home and received this message. In fact, any attempted WiFi connections comes up saying "disabled" after attempting to connect and obtain an IP. Again, these are saved connections that previously worked. I know for a fact that it's not the routers.
Please help if you can. I've tried:
1) power off/up 2x in a row to no avail
2) removing and adding back the connection with the appropriate passwords
3) a factory reset but I really don't want to do that again because I'm afraid flashing it back will bring back the same problem.
3) I haven't put any new apps on it since it last worked earlier today so I can't figure that as an issue. The first time it happened a week ago was when I'd just gotten it. It has worked for almost a week without problem. I did nothing special but travel home.
SPECS:
A500 Wifi
Rooted (was unrooted when it first happened); rooted now using IconiaRoot v1.3
(previously rooted and unrooted with Gingerbreak which would no longer root)
ROM: Honeycomb 3.1 with Virtuous Picasso v.1.1.0
Kernel: 2.6.36.4-UNITY-V5-ge7dee2a-dirty
Thanks in advance.

it's a known problem with this tablet when moving from one access poin to another, introduced with the update to 3.1. you have to reset using the pin hole near the micro USB port. i use a staple.
it may take a few tries. if it never works, there's a specific file you can delete if you're rooted. if you cant do that, you will have to do a device wipe.

There is a known issue of connecting to PEAP/EAP networks, which most work networks are. After connecting successfully, often many times, it will suddenly fail to connect. It also shows the signal from the access point to be very low or non-existent. After this happens, it can also cause problems with other PEAP/EAP access points as well.
If this is what happened to you, here's the fix. Try to connect to the access point giving you problems. While it is stuck on trying to connected, click the access point name and tell the tablet to Forget it. Then enter the same access point information manually and try to reconnect. This fixed my problem, and the fix sticks for a few weeks or so until it comes back.

Interesting, I had this same problem a few weeks ago when I visited my parents house. After a couple reboots it just started magically working again and didn't think anything of it. Their router is whatever the Verizon FiOS people install when you get their service.

Thanks, GeekGuy and Falkner, but.....
I've tried both before, but I went ahead and tried both of your recommendations again (pin reset and connection attempt/forget/add). Neither fixed it.
I would like to try to delete the file that Falkner mentioned, but you didn't specify a name and/or location of it. Can you share that?

I could never find what file to delete, so I've just installed a new ROM (thanks to XDA for info on all the how to stuff).
We'll see if it repeats.
Gone from V.Picasso v.1.1.10 with HC 3.1 to Taboonay 2.1 with HC 3.2.
Thanks for the attempted help!

Just guessing but I would say your problem is solved since no reply from yesterday?

Per my last post, I've switched ROMS. As it happened randomly before, I can only wait to see if it happens again. I will post back if it does.

And....as of tonight it happened again.
Note: Different ROM working since the last post 9-26-11.
ROM Taboonay 2.1
The only thing I can wonder about is if it happens when it tries to connect to a network that is actually down such that it cannot obtain an IP that actually gets internet access. However, it was "disabled" when I brought it up before ever trying to specifically reconnect to a network to realize the ISP wasn't doing their part.
Still....no reboots, or hardware resets have worked. I'm working on an image restore of only the system from the 9.25 install of the ROM rather than a factory data reset. Not sure if that would have been better. Trying to save some of what I've done recently. Gonna have to get used to a weekly backup if this is to continue.
Grrrrr..........restoring a backup turned out to be the last ROM. After reinstalling Taboonay 2.1, I still had all my apps and found the same problem. I'm doing a factory data reset as it's the only thing that fixed it before :-(
The only "oddity" I've experienced has been since last Thursday. The Android Market doesn't even recognize now that I have another device. Have communicated with them; they are investigating and saying they have received reports of this on free downloads giving an "unable to process purchase" message. It updates installed apps, but I cannot download any new ones through market, appbrain -even the appbrain app only and not to the market app. I can download through Amazon, so it's the Market issue. Still, that shouldn't affect this issue.
If you have any constructive feedback, I'd appreciate it!

This was happening to me. I had problems with every rom I tried until the following combo: Taboonay 2.2 with Richard's Villain ROM 3.7 kernel. Every other combo would lead to erratic wifi...now it hasn't happened in 2 days. I don't know why this is happening as many of the roms I tried claim to have the wifi fix integrated. I hope this helps. Just flash the latest Taboonay and then the kernel zip file on too of it. By the way, latest rabbinate is 2.2....NOT THE ONE YOU HAVE NOW.
Sent from my A500 using xda premium

Wifi Turning on Stuck

UPDATE - Problem sorted via philos64 thread at the top...
Should've tried that 1st, but posted here hoping someone would confirm that was the route to take, as it wasn't actually bricked... Never mind, all done..
Why??? Was out earlier so I turned my wi-fi off and my mobile on and everything was working fine..
When I got home, I turned the mobile off and tried to turn wifi back on, but it is hanging on 'Turning wifi On.'
Tried rebooted the tablet a few times and rebooting the router, (BT HomeHub 3), but still the same problem.
This N7 is rooted and running 4.2.2.
When I look at the Advanced Wifi the MAC and IP address are unavailable.
When I go into Wifi Analyzer it says the wifi needs to be turned on and tries but gets same hang and retries...
On the left of the analyzer it shows my Wifi ID with a mac address underneath with a yellow triangle and 'No Signal!' in red.
The wifi from the router is working as my phone is connected via wifi.
Any ideas please people ???
:crying:

going for the post with the most views and zero replies is not on my bucket list... So I'm going to reply to myself..
An Update....
The problem is still there, so I went into bootloader - recovery mode....Then I went into Android system Recovery.
I selected cache then wipe dta/factory reset.. Reboot then starts tablet as new with the unlocked symbol, then goes through the initial setup. Select language, then it does Select wifi and displays 'Turning on wifi'.. Hung...
Would flashing it via Nexus root toolkit sort out then problem... If so, any clues what flash and how...
If it wouldn't fix it... Is the tablet now bricked??
Please answer someone if you know..
Cheers

There have been several posts about wi-fi problems if the outer shell of the N7 is separated and not fully locked in. A loose or separated shell can cause a disconnect in the wi-fi antenna. Check for any separation and maybe squeeze the front and back together all the way around the outer edge.

I did read them and a lot of other threads but they were mainly to do with wi-fi looping and not connecting.... I couldn't find any other post regarding just 'turning it on'.... And seeing as it's sorted with just a flash of the stock rom, I can safely assume this problem had nothing to do with hardware...
Hence why I was surprised I was the only 1 with this 'type' of prob.... (but I didn't read every post so I may have missed one).

Same problem too
filking said:
I did read them and a lot of other threads but they were mainly to do with wi-fi looping and not connecting.... I couldn't find any other post regarding just 'turning it on'.... And seeing as it's sorted with just a flash of the stock rom, I can safely assume this problem had nothing to do with hardware...
Hence why I was surprised I was the only 1 with this 'type' of prob.... (but I didn't read every post so I may have missed one).
Click to expand...
Click to collapse
im experiencing the same thing. im using Samsung galaxy S4 i9505 LTE and on android 4.3/ rooted Baseband i9505XXUEMJ5. it happened when i was trying to erase all the bloatware on my phone using Trulyclean by schoolsux. after i flashed the script i started having this problem.so far ive tried to do a factory reset by using custom recovery, tried to download the modem fix and flashed it through odin and do the advanced settings on wifi and uncheck the auto network switch. The problem that i have is yes it say "connecting" for 2-3 minutes then it gives you a list of possible wifi connections and then you connect. another 2-3 minutes then it wont connect. repeat the steps and now i can connect, then if you turn off the wifi you will have to go through the whole process again. it doesnt save any wifi connections you have connected before. there are 2 other ways i havnt tried yet and that is to flash a different kernel. a custom kernel and reflashing my phone again with the android 4.3 then root:laugh: for the nth time already:fingers-crossed:

hammerthumbs said:
im experiencing the same thing. im using Samsung galaxy S4 i9505 LTE and on android 4.3/ rooted Baseband i9505XXUEMJ5. it happened when i was trying to erase all the bloatware on my phone using Trulyclean by schoolsux. after i flashed the script i started having this problem.so far ive tried to do a factory reset by using custom recovery, tried to download the modem fix and flashed it through odin and do the advanced settings on wifi and uncheck the auto network switch. The problem that i have is yes it say "connecting" for 2-3 minutes then it gives you a list of possible wifi connections and then you connect. another 2-3 minutes then it wont connect. repeat the steps and now i can connect, then if you turn off the wifi you will have to go through the whole process again. it doesnt save any wifi connections you have connected before. there are 2 other ways i havnt tried yet and that is to flash a different kernel. a custom kernel and reflashing my phone again with the android 4.3 then root:laugh: for the nth time already:fingers-crossed:
Click to expand...
Click to collapse
i have same issue with htc one x, my wifi doesn't wan't to turn on. it stuck on "turning on...", i tried to flash different roms, etc, now i think about flashing kernel, did you do that? did it help?

Same problem on N4
Have had the exact same problem not once but twice. One day it works perfectly fine. Next day, it just stops at turning on process.
On my N4 the 4.2 was working fine. Along comes the 4.3 OTA update and the wifi stops working. Does not startup or show the mac addr either.
Did factory reset, wipe cache and even reflash binary from google stock images. No relief.
One day, the wife using gmaps started the gps location service and pop the wifi started,
Now after the 4.4 OTA all seemed to work well till yesterday and pop the wifi breaks down. the earlier trick of gmaps does not seem to work. I think one of the google apps update is breaking this.
After rebooting also, the device seems to remember the wifi state and tries to read the previous history and restore for the startup. And that is killing.
Any idea how to debug this or to wipe the wifi logs or to manually start the wifi/bluetooth radio.. ya athe bluetooth is also stuck.
Thanks guys in advance

Where is the fix?
filking said:
UPDATE - Problem sorted via philos64 thread at the top...
Should've tried that 1st, but posted here hoping someone would confirm that was the route to take, as it wasn't actually bricked... Never mind, all done..
Why??? Was out earlier so I turned my wi-fi off and my mobile on and everything was working fine..
When I got home, I turned the mobile off and tried to turn wifi back on, but it is hanging on 'Turning wifi On.'
Tried rebooted the tablet a few times and rebooting the router, (BT HomeHub 3), but still the same problem.
This N7 is rooted and running 4.2.2.
When I look at the Advanced Wifi the MAC and IP address are unavailable.
When I go into Wifi Analyzer it says the wifi needs to be turned on and tries but gets same hang and retries...
On the left of the analyzer it shows my Wifi ID with a mac address underneath with a yellow triangle and 'No Signal!' in red.
The wifi from the router is working as my phone is connected via wifi.
Any ideas please people ???
:crying:
Click to expand...
Click to collapse
Hi Can you please send a link for the solution? i am still stuck with "wifi turning on" screen and cant seem to bypass it. No matter what Stock image i flash through Wug Toolkit.

i have got the same wifi errorrigictsi vanished
initially i had loaded my explorer with fly rom and everything waas working except the internal memory. i'm not even able to download at least an app and then i tried bulletsense rom for increasing the internal memory of my explorer. it's successful, and the memory increased. From there onwards, the problem started. the wifi first said error... but after reboot, it's all the time saying "turning on"..
by typing "ifconfing twlan0" it said no devices found... so i thought it might be some driver error. coueld any one port some other drivers to the below rom so that i can have both internal memory and wifi...
link to bulletsense rom ///d-h.st/xFr//// ( add https before /xxxx/)
here is a screenshot of it...///bit.ly/MMSeam///
any one please help me on this and give me a chance to raise your thanks meter...
sorry that i'm newbie and not allowed to post links.

Hey guys.. I faced similar issue in my AMOI 820 based Indian local device Micromax (rooted + custom kernal)
I fixed this stuck wifi problem by uninstalling Google apps in system by removing them using Titanium back up + and again installing them from playstore if needed.. Hangouts(in my case) if it's a system app after getting updated is the culprit .. Try removing it and reboot and test it yourself..

guess it working now!!
I was going crazy about this stuck wifi issue!!
I tried everything!! I found on the advance panel on the wifi
That the MAC address and the IP address is unavailble.
After many tries i think i fixed it!! Using:
Busybox and MacMan
MacMan changed my MAC address and now the wifi is no longer stuck!!!! Hope it will help you too. Peace

yurashi# said:
I was going crazy about this stuck wifi issue!!
I tried everything!! I found on the advance panel on the wifi
That the MAC address and the IP address is unavailble.
After many tries i think i fixed it!! Using:
Busybox and MacMan
MacMan changed my MAC address and now the wifi is no longer stuck!!!! Hope it will help you too. Peace
Click to expand...
Click to collapse
I have same problem on my nexus 5,
But macman is not working.
Any other solutions

wifi turning on problem
i have a xperia sola mobile ..
wifi is does not work ..please help
when touch the wifi option then it does not turning on ..

[Q] i9500 Wi-Fi suddenly stops working...

I'm using this ROM: http://forum.xda-developers.com/showthread.php?t=2540838
Wi-Fi worked fine until just now when I found it wasn't connected to the hotspot. When I tried to connect, it said "failed to connect to network". Tried deleting /data/misc/wifi and now it just stuck at "searching for Wi-Fi networks..."
Tried Wi-Fi tethering/mobile data/bluetooth and all works fine which probably means the hardware is fine. Also tried reflashing the ROM and no luck.
Is there anything I can try except doing a factory reset? Help appreciated.

Mygod Studio said:
I'm using this ROM: http://forum.xda-developers.com/showthread.php?t=2540838
Wi-Fi worked fine until just now when I found it wasn't connected to the hotspot. When I tried to connect, it said "failed to connect to network". Tried deleting /data/misc/wifi and now it just stuck at "searching for Wi-Fi networks..."
Tried Wi-Fi tethering/mobile data/bluetooth and all works fine which probably means the hardware is fine. Also tried reflashing the ROM and no luck.
Is there anything I can try except doing a factory reset? Help appreciated.
Click to expand...
Click to collapse
Have you tried a different modem?

Try flashing a newer modem or the entire firmware!! Most of the times it should do the trick!

luv2vexx said:
Have you tried a different modem?
Click to expand...
Click to collapse
What modem? I'm using the latest version and it worked fine a few hours ago.

spg76 said:
This happened to me. It is related to something in the database settings.
To fix it download an SQLite Editor (I use SQLite Debugger. 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.
Sometimes the issue comes back and you have to do the fix again.
Maybe someone more qualified than me can take a look at to fix this problem permanently?
Hope this helps.
Click to expand...
Click to collapse
Problem solved.