[Q] Wifi issue after Lostkernel --> Pulled Kernel - Samsung Epic 4G Touch

Hi all,
I was wondering if anyone had any ideas about this:
I had a stock phone for 2 weeks, which was perfect. No LOS, 18 hours battery life, wifi, gps, etc, etc all working great.
I wanted to root it for wifi tether, so I odined LostKernel (stable). I got wifi tether working. However, the next day I had 6 LoS issues where I'd never had one before (I do mean the genuine deal, circle with the slash through it, requiring reboot). Since my phone was not doing this stock, I flashed back to the pulled kernel. Still kept root, yay. Both times, immediately after flashing the kernel I updated profile.
BUT - while I haven't had another LOS (it's been 2 days), I did discover a problem: I can't seem to connect to wifi anymore. It sticks on "obtaining IP address". I've tried different hotspots, I've tried secure and open signals etc... no dice.
Is there a way to reset Wifi? Should I try reflashing the pulled kernel?
Thanks guys, you do awesome work here....
Joe

Related

[Q] Can't get wifi to connect

I have flashed to CMod 7 nightly 8 yesterday, to try out Gingerbread, and after several glitches at the start (apparently I had to restart once to get the wifi to work at all), I managed to activate the phone, and started downloading all my apps (thanks for app-brain that kept all my apps listed and ready).
At around noon yesterday, my wifi got disconnected, and it can't seem to get connected again - it just stays stuck on "Obtaining IP Address..." for a long while, before finally giving up and listing my network as "Disabled".
At first, I thought it was something wrong with the wifi in my office, but the same thing happened to me at home in the evening, and keeps on happening to me here now.
I reverted back to factory setting (deleting all my hard-installed apps), hoping it will work again, but no luck. Still can't get connected to the network. Just now I also removed the wireless security of my network completely, and it is still not working.
I switched radios between
2010-12-21 - Radio_12.35a.60.140f_26.04.03.30_M
2011-01-04 - Radio_12.28e.60.140f_26.04.02.17_M2_SF (currently on the DHD)
2011-02-25 - Radio_12.28g.60.140f_26.05.05.27_M3
and there was no difference.
I am now thinking maybe I should do a rom manager restore, to see how it works on the old (stock) rom.
Any tips from anyone here?
It's a bug in the rom. Use rc1 that works fine.
Sent from my Desire HD using XDA App
Have you updated BusyBox? I recently updated to 1.18.3 and it broke root & WiFi.
Yeah, coming to think of it, I did install busybox just before the trouble started.
Now I am back on stock rom. I must admit that I find the look and feel of the Sense UI much more pleasing than the Cyanogen's... But maybe it's just a question of getting used to it.

[Q] Evo CM7 won't call, won't do data (after several days of working)

I recently rooted my Evo and put CM7 nightly 12 on it. All was well, I even installed the Savaged Zen kernel. Even better. Just yesterday I updated to CM7 RC2 to give it a shot. Today I went to work and had to drive to a remote area where I don't get service, so I put my Evo in airplane mode to save battery life. (this was after having it overheat while charging, could be a hardware issue) At the end of the day I turned the 3G radio back on and nothing... It connects and disconnects to the tower. It will not send data and it will not place phone calls on the 3G connection (WiFi works). I did a restore back to nightly 12 to see if maybe it was a problem with the OS. Nothing. A few hours ago it began functioning again, but after checking it a few minutes ago I have discovered it is back to no connection. (the signal bars bounce between nothing and full, but never shows the X for no signal) Has anyone else had an issue like this? Should I restore back to sense and unroot to take advantage of my warranty? If this has already been posted before please direct me to the right thread.
I'm having the same problem. I installed Cyanogen RC 2 and had no problem since it came out. I went on vacation to a beach, and during my trip I switched it on to airplane mode since I was in a remote location. After turning it back on, I noticed I can't get the Data Connection to work. The 3g bar doesn't even show up, and after messing with the settings trying to fix the problem I managed to do nothing. I tried using a backup I made from a week past, and encountered the same problem. Then I flashed the newest nightly and still no Data whatsoever. Wifi works fine, and 4g is acting weird but I got it to work a few times. Does this have something to do with sprint?
I think it is the same as the 4G 3G hang. I typically get it while tethering and the phone is normaly quite warm.
So I managed to fix the problem. I ended up flashing Koni's Elite Rom
http://forum.xda-developers.com/showthread.php?t=941055
I got an error that said "Error 67 registration failure"
I updated my profile and it was automatically fixed. I'm not aware you can do this on cyanogen stock rom, but I think you can dial a number that will do this for you.
After getting the 3g to work again, I flashed back to the stock cyanogen, and it is still working. So for now im good to go.
I do think is sprint and not the rom because I did a restore to warm z and was still having the same problems. Also my brother's evo was doing the same thing and he doesnt have cm7 on it.
I figured it was something to do with the profile... I restored all the way back to sense and attempted to update profile, but it doesn't seem to be doing anything. I will try that ROM and see if it does anything. Why can't they just make this easy and allow updating of vital software that allows the radios to work on WiFi or from SDcard? This is dumb.
I tried that ROM and nothing works. Not really sure what to do. I might have to restore to Sense and unroot to take it back... I really want to avoid that if at all possible.
Unrooted my phone and getting a free replacement from Sprint. Still unsure of the problem, seems to work randomly.
jmoh said:
So I managed to fix the problem. I ended up flashing Koni's Elite Rom
http://forum.xda-developers.com/showthread.php?t=941055
I got an error that said "Error 67 registration failure"
I updated my profile and it was automatically fixed. I'm not aware you can do this on cyanogen stock rom, but I think you can dial a number that will do this for you.
After getting the 3g to work again, I flashed back to the stock cyanogen, and it is still working. So for now im good to go.
Click to expand...
Click to collapse
I also have the same problem. No 3g data, gps, and 4g is acting weird.
I also had the same registration error number 67. My question is, how do you update your profile?

Intermittent WiFi Stability on AOSP

Hey everyone, just came over here from the HTC One X ( AT&T ) forums, smashed the screen on it and used an upgrade to get an AT&T SGS3, loving it so far. Had it rooted and custom recovery, and was on a custom ROM not even an hour after getting home. Anyway, onto the main part of this post.
I tried CM10 ( the 11/01 and 11/02 nightlies), both of the AOKP, and LiquidSmooth, and on all of them, my WiFi stability is not there. It seems to disconnect at random, if connect at all, and when i walk out of range of the router, and then come back, it will not automatically reconnect until i go into airplane mode. Trying to turn WiFi itself off and back on does not work - it won't turn off/back on, it sticks at what it was at.
TouchWiz ROMs, everything works just fine. I'm pretty sure it was working on MIUI as well, but i didnt have MIUI on there long enough to properly test it.
I am using the UCLH9 radio, since AFTER searching the forums pretty in-depth, i found that all radios prior to UCLH9 had wifi driver issues. Flashing this new radio did NOT fix the issue.
I have tried both stock CM10 kernel AND Ktoonsez's kernel (which is pretty freakin awesome, btw! :good: ) and still have WiFi problems.
I have tried flashing ROMs through both TWRP and CWM Recoveries, and have done a full wip of /system /data /cache and /dalvik-cache 3 times each before flashing a ROM.
I'm a pretty competent at flashing ROMs and troubleshooting problems, I am a pretty well-known beta-tester for multiple Sense and AOSP ROMs over at the One X forums, and I have a very good knowledge of how to work ADB and Fastboot. I've been around XDA for a little while, and I know the way of things around here. (don't want you guys thinking im just another a$$hole that threw a post up the second a problem occurred without doing some research first!)
If anyone has ANY ideas as to what may be causing the wifi drivers to crash, PLEASE fill me in.
I've tried all the same things you have and have had no success. The best wifi stability I got was the AOKP_d2att milestone1 w/ lean kernel combination, but wifi would stay connected for 3-5 minutes as opposed to 30 seconds.
I briefly tried CM9, but that still had wifi issues. I might try a few other ICS roms
I came across these threads that documented the problem across other phones:
code.google.com/p/android/issues/detail?id=34942
code.google.com/p/android/issues/detail?id=36993
I've decided that I'm stuck with ICS until the official JB comes out.
Avram
awalts said:
I've tried all the same things you have and have had no success. The best wifi stability I got was the AOKP_d2att milestone1 w/ lean kernel combination, but wifi would stay connected for 3-5 minutes as opposed to 30 seconds.
I briefly tried CM9, but that still had wifi issues. I might try a few other ICS roms
I came across these threads that documented the problem across other phones:
code.google.com/p/android/issues/detail?id=34942
code.google.com/p/android/issues/detail?id=36993
I've decided that I'm stuck with ICS until the official JB comes out.
Avram
Click to expand...
Click to collapse
Well, I flashed Intergalactic, which is a modded Stock ICS TW ROM based on the AT&T firmware. Shortly after, I reinstalled TWRP recovery and flashed task's AOKP with ktoonsez's kernel, and WiFi works!
This is similar to an issue we had several weeks back with CM10 based ROMs on the HTC One X, you couldn't get LTE unless you flashed a ROM based on Android 4.0.3, it was something with CM10 obviously, because it was fixed in one of the October nightlies iirc.
Try flashing intergalactic and then task and ktoonsez aokp and see if your WiFi is working and let me know
Sent from my SGH-I747 using Tapatalk 2
Nope, no luck this way either.
Wifi under Intergalactic works fine.
TWRP flash AOKP milestone 1 alone, with the ktoonsez kernel, or with lean kernal and my wifi still hangs after ~1 minute of inactivity. The phone grinds to a halt. If you can get to the settings, it says that I am connected to my router, but shows no signal bars. If you can then turn wifi off, the phone un-freezes, and (except for no wifi access), the phone is back to normal. If you now turn wifi back on, it stays up for another minute or two and goes down again.
I'm open to any other suggestions.
Thanks though
Avram
i am using task and ktoonsez rom....when i first installed it, i noticed wifi dropping, it was annoying.
kinda dont happen anymore. The only 2 things i can think of that might have helped me is; i flashed a new modem i747MVLLE8(I'm with rogers), and under Wi-fi(menu/advanced), i unchecked poor connections.
also my router is 2.4ghz and 5ghz band, but i am connected to the 2.4ghz band.
hope it helps somehow.
I had horrible dropouts and speed with my last WiFi router. I forget the name/model but it was a new model (released this year) that had great reviews.
I went back to my old router and all my wifi problems disappeared.
I do get dropouts once in awhile still. But I haven't done a clean ROM install in awhile.

[SOLVED] WiFi Can't Obtain IP Address on AOKP

Hello, I've been having a problem with wifi on all new 4.2 roms over the last week or so. For an unknown reason, I can connect with phone data but attempts to get on wifi have been mostly unsuccessful. WiFi just says "obtaining IP address" but eventually times out and starts authenticating again. I have tried wiping everything with 3 different roms and now I'm on Tasks AOKP rom (12/23 with stock kernel) and having the same problem. I've tried all available Canadian modems with the same results (data is best for me on LLH1 though). If I switch back to CM10 (12/16) my wifi works perfectly.
I can get wifi if I mash the on off a few times as it usually causes a force reboot and when it boots I get wifi about 50% of the time. Attempts to modify router settings and reboot my hardware have been futile.
Anyway, I'm hoping one of you is interested enough to peruse the log I saved using "wlan" as a filter. I don't know if that's the best filter but it seemed to show the gist of it. Thank you in advance!
http://db.tt/Q2YwDJvU
Sent from my SGH-I747M on Bell using Tapatalk 2
I'm having the same issue task aokp 12/23. Also, if I try to toggle the wifi in the settings screen, it reboots the phone.
However you might try to do this. This morning, I flashed the 12/23 kernal found in task's op. I can toggle wifi on/off now without issue. But i'm not anywhere near wifi to check if it connects.
I found WiFi at target and I'm posting from it. It connected right away.
So, flashing the kernel alone after flashing the ROM, fixed my problem
If you were having the same problem as me, I have to wonder if disconnecting and attempting to reconnect will work.
I downloaded tasks 12/23 underwear kernel, booted to recovery, wiped cache/davlik, flashed only kernel, wiped cache/davlik and rebooted. Tried toggling wifi a dozen times, phone crashed, rebooted, still can't get IP. I imagine that if I play with it long enough I'll get wifi back temporarily, but I use wifi more than data so I'd like it to work better if it can.
Sent from my SGH-I747M on Bell using Tapatalk 2
Back at home, I can't connect to wifi.
Edit. randomly tried it again, and it connected instantly.
Yeah. I've spent a lot of time troubleshooting router settings (channels, signal type etc) and have thought on several occasions that I had fixed it, but shortly after found that it was a one time connect. I have a spare router in storage that I'm going to try, soon, and that should help me decide if it's a router problem or a JB issue.
Sent from my SGH-I747M on Bell using Tapatalk 2
Well, no need to play with the router I have managed to obtain flawless wifi, but not on Tasks rom. The 12/27 illusion rom works great, but I can't get mobile data working on it. I switched back to tasks with hope that a future update sets the wifi straight.
Sent from my SGH-I747M on Bell using Tapatalk 2
I tried the official CM10.1 12/28 nightly this morning and quickly discovered that wifi was working great. I was able to turn it on/off multiple times and reboot without issue. I flashed a different Canadian modem and reflashed tasks AOKP rom (no kernel, no gapps) and wifi was broken again. That logcat makes me think it's something to do with how the rom is handling DHCP requests, but I'm a noob and hardly know anything about any of this stuff.
A nan restore to my AOKP rom got all my stuff back, but it's takes me a solid 30 minutes to get wifi connected.
Sent from my SGH-I747M on Bell using Tapatalk 2
I updated to tasks AOKP 1/1/13 and my wifi is working perfectly! I considered switching back to 12/12/23 to see if it was the build, but who cares?!
This issue is resolved.
Sent from my SGH-I747M on Bell using Tapatalk 2

WiFi failed to connect. Speed to slow.

So I'm running stock 4.4.2 Rooted, and as of 2 weeks ago, I'm unable to connect to wifi at my gym. The signal strength is strong, yet I try to connect and after awhile of attempting to connect over and over again nothing happens, but sometimes I get an error saying "failed to connect, network to slow" or something along those lines. My wifi works perfect fine at home though. All info I could find just leads to factory reset which won't happen for me. I've deleted that wifi over and over and put the password in again several times, no change. It's only me with this issue though and as I said, friends with the exact same setup can connect perfectly fine. This just happened out of no where one week after working fine.
Well now that I think of it, over a period of two more weeks before the no connection at all issue, it was starting to turn into a crawl for speed but only for me.. Stock everything Rooted, and stock kernel.
ReapersDeath said:
So I'm running stock 4.4.2 Rooted, and as of 2 weeks ago, I'm unable to connect to WiFi at my gym. The signal strength is strong, yet I try to connect and after awhile of attempting to connect over and over again nothing happens, but sometimes I get an error saying "failed to connect, network to slow" or something along those lines. My WiFi works perfect fine at home though. All info I could find just leads to factory reset which won't happen for me. I've deleted that WiFi over and over and put the password in again several times, no change. It's only me with this issue though and as I said, friends with the exact same setup can connect perfectly fine. This just happened out of no where one week after working fine.
Well now that I think of it, over a period of two more weeks before the no connection at all issue, it was starting to turn into a crawl for speed but only for me.. Stock everything Rooted, and stock kernel.
Click to expand...
Click to collapse
.....have the gym reset their router..... cause if you can still connect to other WiFi out there then i think it less of your phone and more of the router at fault here
Well, then why is only my phone effected? People with the same version and Rooted and such don't have this issue
ReapersDeath said:
Well, then why is only my phone effected? People with the same version and Rooted and such don't have this issue
Click to expand...
Click to collapse
is your phone ND8 or NDC??
ND8
ReapersDeath said:
ND8
Click to expand...
Click to collapse
my only other suggestion would be to flash Ktoonez(might have misspelled his username) TW Kernel and Tweaker and to Flash the NDC modem; from personal experience NDC modem gives me better 4g signal....yet it also gives me better WIFI signal as well as connectivity, some will say it doesn't affect WIFI but it did for me so you can try that since you don't want to Factory Data reset it.
Well my phones disconnected anyhow. I can only use wifi really so I keep it in airplane mode with wifi enabled

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