Develop Bugs

[Q] Wifi Problem with cyanogenmod 7 rc1

Hi, My wifi was working fine with the stock 2.2 froyo rom.
I decited to install the cm7, the rom is REALLY great but Im one of the "Some people say that they have wifi problems".
So, here is some screeshots take by the wifi analyzer, maybe can help to find the reason of bug.
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The phone was, literally on top of my wifi router, yet one can see the oscillation...
obs: my wifi SSID is "rafaelfx"
Thank you all :d

edit: screens!

I was having issues and followed these direction and my wifi was way better and faster too.
http://forum.xda-developers.com/showthread.php?t=1169345&highlight=cm7+wifi
Be interesting to see if a made a difference on yours.

It says I cant edit cause is read-only...

How to edit
azulpiscina said:
It says I cant edit cause is read-only...
Click to expand...
Click to collapse
@azulpiscina, you have to click the "Mount R/W" button at the top right of root explorer screen before you can edit files.

Trying, back in a minute with feedback.
thanks!
Sent from my MB525 using XDA App

unfortunately still not working...
I use wifi a lot, I go back to stock rom until they have a fix, but thank you anyway!

gramps50 said:
I was having issues and followed these direction and my wifi was way better and faster too.
http://forum.xda-developers.com/showthread.php?t=1169345&highlight=cm7+wifi
Be interesting to see if a made a difference on yours.
Click to expand...
Click to collapse
This ended up not working for me either. I have had this issue with this phone and others and it seems to come and go, raising it's ugly head again when I went with CM7.
I had a D-Link DIR 655 router and last night I replaced it with a TL-WR1043ND and so far the issue is gone. Signal strength is much better too.

Ive had no problem
gramps50 said:
This ended up not working for me either. I have had this issue with this phone and others and it seems to come and go, raising it's ugly head again when I went with CM7.
I had a D-Link DIR 655 router and last night I replaced it with a TL-WR1043ND and so far the issue is gone. Signal strength is much better too.
Click to expand...
Click to collapse
Ive had no problem whatsoever with wifi on any cm7-rom ive installed.
Ive had rc1 and many nightlys installed and never had any issues with wifi.
My router is a Linksys wrt320n with dd-wrt software.

It didn't come with it but I flashed the new router with dd-wrt. I have not had any wifi issues since.
I was reading on the dd-wrt wiki about the N specs and discovered there is a setting in the old router that may fix the issue and also explains why some people have issues and some don't.
http://www.dd-wrt.com/wiki/index.php/Wireless-N_Configuration

baffs said:
Ive had no problem whatsoever with wifi on any cm7-rom ive installed.
Ive had rc1 and many nightlys installed and never had any issues with wifi.
My router is a Linksys wrt320n with dd-wrt software.
Click to expand...
Click to collapse
I installed CM rc 1.5 and I have a Linksys WRT54G at work (with dd-wrt) and one at home (original software), and i'm having this wifi disconnect issue in both.
I have 2 defys, the other running 2.2 and it's amazing to see the difference in the signal strength of the two ROMs running side by side.
I just tried deleting the file /data/misc/wifi/wpa_supplicant.conf and reboot (from this thread: http://forum.xda-developers.com/showthread.php?t=1161460&highlight=cm+wifi) in the last 10 minutes and so far so good, but it didn't seem to fix it for someone else in that thread in the long run. I'll report back here if it fixes it.
Update: That tip above didn't work, but now I'm using 110927 nightly and I don't see the disconnect issue anymore, and the weak signal seems to be gone too.

I also had wifi problems, always disconnecting. I found in the official motorola forums someone saying you should search in the router settings for an option called wmm or wme (windows media extension) and deactavate it. also use tkip instead of aes. im running cm7 rc 1.5 with a dlink dir 655 router. it solved my problem. didn't have any dissconects the last days.
hope this helps someone

benzD said:
I also had wifi problems, always disconnecting. I found in the official motorola forums someone saying you should search in the router settings for an option called wmm or wme (windows media extension) and deactavate it. also use tkip instead of aes. im running cm7 rc 1.5 with a dlink dir 655 router. it solved my problem. didn't have any dissconects the last days.
hope this helps someone
Click to expand...
Click to collapse
Problem is, there are wifi issues in CM (at least for some people, like me). I don't have any problems in 2.2, with the same routers I always connect to. So I would guess we need to find what could be changed in CM to fix this issue, although I understand that changes in the routers can alleviate the issue.

Anyone knows where's the cfg of the wireless strenght icon on the top bar? I wanna change the value of the 4 stages.

bra2006 said:
Problem is, there are wifi issues in CM (at least for some people, like me). I don't have any problems in 2.2, with the same routers I always connect to. So I would guess we need to find what could be changed in CM to fix this issue, although I understand that changes in the routers can alleviate the issue.
Click to expand...
Click to collapse
i agreed with bra2006. it should be fixed in cm7, and not expecting any everyday users to muck around with their modem settings to get around it.
if some roms don't have problem, why should cm7? surely they can compare and work out why cm7 has problems while others don't.

I also have the same problem, with RC1 was ok, when I put RC1.5 began to disconnect the wifi
Sent from my MB525 using XDA Premium App

Wifi turning off during sleep

I've searched the Q&A and General forums on this but haven't had any luck...
In advanced wifi settings, I have "Keep wifi on during sleep" set to "Always". My phone is doing the exact opposite (wifi turns off when I don't use the phone for a while).
I have really bad cell service where I live and subsequently set up VOIP calling using this method and would really prefer to have wifi on while I'm at home so I can send/receive calls/texts.
I was having this problem before using the apps AutoAir and Plane Mode (so I don't think they're contributing), and have seen a few threads about the SGS3 having wifi connectivity issues, but there doesn't seem to be a lot of people complaining about wifi turning off during sleep even when the "Always" sleep setting is enabled.
Is this a bug? Am I an idiot? Any suggestions?
EDIT: I'm stock, and have the latest OTA (late July)

Not for sure but Sprint's auto connections may be to blame.
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Although it says it's suppose to connect to Wi-Fi when possible. This setting is under mobile networks.
Sent from Pluto.

Speedin07si said:
Not for sure but Sprint's auto connections may be to blame.
Although it says it's suppose to connect to Wi-Fi when possible. This setting is under mobile networks.
Sent from Pluto.
Click to expand...
Click to collapse
Thanks, I do have this setting enabled. I'll uncheck and report back!

Nope. With Sprint Automatic Connection unchecked, wifi still goes to sleep.
In fact, I just woke up my phone, and not only was wifi off, but airplane mode tuned off as well... I wonder if when the phone goes to sleep it turns wifi off as well as certain background apps?

highcheef13 said:
Nope. With Sprint Automatic Connection unchecked, wifi still goes to sleep.
In fact, I just woke up my phone, and not only was wifi off, but airplane mode tuned off as well... I wonder if when the phone goes to sleep it turns wifi off as well as certain background apps?
Click to expand...
Click to collapse
I have a similar problem in that wifi is constantly turning off. Doesn't matter whether the SAC is on or off. I suspect that some internal switch is desperately trying to save juice. I don't care about battery drain because I have 3 extra batteries. It even does this when I'm sitting 5 feet away from my cable router. If I can't fix this I'm finding a new phone! Where is the Bonsai Team when you need them? :crying:

U have to delete it. If ur rooted its called connectionmanager.apk in /system/app. But yeah if ur on a development site and don't like 1 app, getting a new phone is definitely the way to go. Wtf?!
To make it easy on the noobs with root, paste in terminal or adb:
su
mount -o remount rw, /system
rm /system/app/ConnectionManager.apk
Reboot, rejoice.
Or get off stock and check out cm10 or something
AS FOR THE OP-not much help for you, best advice I can give: Root The Damn Phone

billard412 said:
U have to delete it. If ur rooted its called connectionmanager.apk in /system/app. But yeah if ur on a development site and don't like 1 app, getting a new phone is definitely the way to go. Wtf?!
To make it easy on the noobs with root, paste in terminal or adb:
su
mount -o remount rw, /system
rm /system/app/ConnectionManager.apk
Reboot, rejoice.
Or get off stock and check out cm10 or something
AS FOR THE OP-not much help for you, best advice I can give: Root The Damn Phone
Click to expand...
Click to collapse
This method doesn't work for my rooted Galaxy Note 2. Wi-fi still turns off when phone goes to sleep.

endaugust said:
This method doesn't work for my rooted Galaxy Note 2. Wi-fi still turns off when phone goes to sleep.
Click to expand...
Click to collapse
do you have your phone's mac id set as a static ip through router? could possibly be a router lease time problem. static ip uses the same ip for the same device on your network.
this post sent from my Jellybombed GalaxySIII

Same trouble
joeyhdownsouth said:
do you have your phone's mac id set as a static ip through router? could possibly be a router lease time problem. static ip uses the same ip for the same device on your network.
this post sent from my Jellybombed GalaxySIII
Click to expand...
Click to collapse
I have the same problem, auto-off even it's set "Never". And I don't think router lease time is a problem because I just looked it up, the lease time of my router is "1 day", but my phone's wifi auto-off more often than that.
Still looking for solution...
my phone is htc desire s, I update via ruu and then got this problem...

I had the same thing going on. I found a thread on XDA that gave me this trick which has resolved my S3 WiFi not being connected occasionally.
I dialed *#0011# which brought up the service menu, then tapped menu and selected WiFi. Toggled the WiFi Power Save Mode to Off and backed out. Since then, I have setup an activities shortcut to the Service Mode, WiFi Debug Screen since it resets back to on after rebooting.
Sent from my GT-P7310 using Tapatalk HD

WiFi Connection problem. ( Network Disabled. Poor connection)

The weird part is it says "Network Disabled. Poor connection." but the bar is strong. It has always worked up until the last 24 hours. No god damn google-ing was helping. It is set to wpa/wpa2 PSK.
What the hell is wrong with it. The 4glte works. I haven't downloaded anything obscure.
Provider Telus.

Wow, I now have the exact same problem with my SGS3 (international version without LTE). I already tried "forget this network" on my phone and "delete this device" on my router but it still wouldn't connect.
I installed the official JB update a couple of days ago. Never had that problem before.
Edit:
I could fix it by disabling DHCP and instead assigning it a static IP in my network. Though it is still a bug because if I'm in someone else's network (e.g. Starbucks) I usually wouldn't be able to use this solution.

Okay, it stopped working the next day and now everything I try, I can't get WiFi to work.
****ing piece of **** phone. Since the official Jelly Bean-Update (my phone is not rooted and no custom rom or whatever) several things stopped working. My ****ing Google Calendar just won't sync anymore (says "sync is currently experiencing problems, will be back shortly" for 2 weeks now), ****ing WiFi stopped working. I'm really pissed right now, mostly because I didn't customize my phone for exactly those reasons!!!

suarsg said:
Okay, it stopped working the next day and now everything I try, I can't get WiFi to work.
****ing piece of **** phone. Since the official Jelly Bean-Update (my phone is not rooted and no custom rom or whatever) several things stopped working. My ****ing Google Calendar just won't sync anymore (says "sync is currently experiencing problems, will be back shortly" for 2 weeks now), ****ing WiFi stopped working. I'm really pissed right now, mostly because I didn't customize my phone for exactly those reasons!!!
Click to expand...
Click to collapse
Honestly, what were you expecting? touchwiz is notoriously known for being absolute trash. None of the issues you've brought up occur on custom ROMs. Bite the bullet and flash one already.
Sent from my Galaxy S3

My solution for "Network disabled. Poor connection" problem.
I had exactly the same problem today (SII, ANdroid 4.1.2 - Samsung leaked) but the history was a bit different. After the flashing all worked fine for several days. Today I upgraded my WiFi router with the new firmware (before I used the 5 years old one) and on my Droid the problem occurs. What is important, I got 3 devices in the home network: my Samsung Galaxy S II I mentioned, and 2 others - HTC Desire HD and Galaxy Ace - both with tje Android 2*. WHat was strande, only HTC worked withut any problems, both - Galaxy and Ace stopped connecting to WiFi.
I read a lot of posts, i undersand that the available solutions are: static IP (not acceptable, I need to connect to different WiFI networks every day) or rooting phone and clearing DHCP configuration on the phone (not available without root, as in my case). But - because everything worked ok before, without any changes on the phones (!) and as I read in the posts the problem is network-related, I decided to find the issue in the router configuration. So I cleaned the conf. of the router (reset to thefactory default settings), removed the information about my network from the phones, connected my phone to the "Clean" unprotected WiFi (default WiFi set-up after the reset), and then step-by-step added more security configuration on my router. First - changing the WiFi SID name, through the wireless mode (AP), then network mode - from B to Mixed, and then security modes WEP, WPA, WPA2 and algorithms: TKIP, TKIP+AEP. After every change on the router (several router restarts needed unfortunately) i tried to connect my phone to the WiFi. Finally I added the MAC filter. And... everything works OK! :laugh:
I propose to test the same solution. In my opinion the phone will connect without any problems to the unsecured WiFi, then one can find which step, which area of the config cause the problem - if it is solved when setting the mixed network (B/G) or maybe some of the security algorithms are not accepted.
I know that in fact it is not the fastest solution, but in my case the problem was solved - I got the same security level and settings as before when I had this error! Probably the changing settings of the connection which must be aplied by Android, do quite big 'revolution' in the DHCP conf. files of the phone, and the result is the same as after clearing the folders after rooting.
I hope my solution could be helpful!
Jamez

Uncheck avoid poor connections... and the WiFi on S3 works fine on AOSP... dunno about TouchJizz
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Quasimodem said:
Uncheck avoid poor connections... and the WiFi on S3 works fine on AOSP... dunno about TouchJizz
Not all Android versions have the option you mentioned, check google how many people have such problem with no solution...
Click to expand...
Click to collapse

Jamezrules said:
Not all Android versions have the option you mentioned, check google how many people have such problem with no solution...
Click to expand...
Click to collapse
No need, mine works fine...

I have exactly the same problem. Started right after the 4.1.2 update (SGS3 international). Unable to connect to any secured WiFi. Always the same: connecting -> authenticating -> obtaining IP address -> disabled (and a popup about poor connection).
Sometimes it does connect if I reboot or first reboot after factory reset.
Tried about 4 different routers. Factory defaults. Still the same.
I guess it's time for an unofficial ROM...

noxxe said:
I have exactly the same problem. Started right after the 4.1.2 update (SGS3 international). Unable to connect to any secured WiFi. Always the same: connecting -> authenticating -> obtaining IP address -> disabled (and a popup about poor connection).
Sometimes it does connect if I reboot or first reboot after factory reset.
Tried about 4 different routers. Factory defaults. Still the same.
I guess it's time for an unofficial ROM...
Click to expand...
Click to collapse
Stock JB ROM? Router model? 2.4 or 5Ghz?

I had this exact same problem, I had 4.1.1 and I odin flashed to 4.0.4 thinking it was the JB update. I found out that my Wifi password was off by 1 number and instead of the phone telling me my password was wrong it would throw that error at me. As soon as I double/triple checked my password and entered the correct one, my phone has been working fine ever since. I am on stock 4.1.1 JB.

Did anyone find a solution to the Wifi Problem on 4.1.2?
Regards

I think i found a fix, for some!
Quasimodem said:
Stock JB ROM? Router model? 2.4 or 5Ghz?
Click to expand...
Click to collapse
I fixed it, change router to 5GHz mode, although the rest of my house uses the 2.4GHz.

Adig54 said:
I fixed it, change router to 5GHz mode, although the rest of my house uses the 2.4GHz.
Click to expand...
Click to collapse
Some routers can broadcast on both frequencies simultaneously with different SSID's. I know newer Netgear routers do this.

Adig54 said:
I fixed it, change router to 5GHz mode, although the rest of my house uses the 2.4GHz.
Click to expand...
Click to collapse
Mine is still upset most times even on 5ghz. Forgetting the network seems to fix it for me. It is just a pain to do that dance every to time I get home.
Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

dagonas said:
Did anyone find a solution to the Wifi Problem on 4.1.2?
Regards
Click to expand...
Click to collapse
Yes no WiFi at all after 4.1.2 OTA update.

I747 already released official 4.1.2?? Or is it custom ROM?
Try clear cache and dalvik if you're on custom rom
Sent from my SGH-I747 using xda app-developers app

any fix?
any fix for this?
notes on my exact situation
-wifi works fine on many open networks and private networks for both myself and my gf (both using galaxy s3 phones)
-the specific network is a private network at a business (my gf is the owner of the business so we have access to the router and its settings)
-we have both previously connected to this network before without any issue.
today neither of us could connect to this network. we restarted our phones, the router, "forgot" the network, and eventually gave up.
This is very frustrating as we both spend a good amount of time in the business (coffee shop) and it seems that no one else has connection issues, not other phones, not laptops or tablets, not anyone else. Both of our galaxy s3's just keep coming up empty on this one network.

Help!
I have the same problem after root my i9500 with CF-Autoroot on 4.3.
Already tried everithing but after some time from root it lost connection and can't connect again, even on other router.
With 4.2 always worked fine. But now, if I do the root process the wifi works only for 5 minutes.
It start with the first 4.3 update, but even now with the last 4.3 I9500XXUEMJ9 I can't root.
The "Network Disabled. Poor connection" is the only problem, everithing works fine. The root is ok. Knox freezed.
But now I have to flash the stock firmware again to get wifi working. That is the only solution (remove root) until now.
Any help?

Poor WiFi performance

Hi everyone,
I've noticed that when this phone is a bit away from the AP I get poor or no traffic even though the signal levels are good, which makes me believe the RX or sending signal is low which makes it impossible for the phone to talk back to the AP. Perhaps the Wireless antenna layout in this phone is flawed or maybe only in my phone. Anyone else noticing similarly results?
Also engineering mode says 5GHz wireless as supported by the chip, wonder if it's possible to show up in the wireless settings? Maybe it's disabled because of China restrictions?
Skickat från min Elephone P8000 via Tapatalk

I have the same issues.... When I am far from the AP even though it will connect with a decent signal (two bars) after a while it will lose connection and try to reconnect and once it does, it will lose the signal again and again... I have also noticed that this does not happen so easily with 802.11n APs. I have installed the Wifi fixer app which allows the phone to reconnect almost immediately and this has minimized the problem but it very annoying.
I do not know if this is an antenna issue since it does actually discover many wifi networks that may even be in buildings across the street and also because I have seen an improvement with the latest 0909 firmware.
The problem however does exist even with the flyme version. I haven't tried eragon's version yet since I am waiting for the one based on the 0909. It is a baffling problem...
The main problems for me with this phone are the wifi disconnections and the gps accuracy, if these two are solved I believe that this is a phone that I would happily keep for a couple of years. I keep my fingers crossed hoping that the developers will find a way to solve these.

I doubt that these Wifi-problems can be solved by a mod. I regularly observe that there is no wifi throughput, even though signal strength is absolutely OK. After disabling and re-enabling wifi all is good again - for a certain time. To me it looks more like a software problem that prevents data to flow even though there is a good enough wifi connection, maybe something wrong in the network stack. As for the 5GHz: Most modern chipsets support both bands, but as far as I know separate (at least: special) antennas are required to support 5GHz. Could be there is just no adequate antenna built into our P8000...

I also have the issue you describe Brewn - I first posted in the Eragon thread but it's better in this one(copied the conversation below...) I have found no fix either and it's v.annoying!
Quote:
Originally Posted by charliepie 
Am I the only P8000 owner that has the wifi not working issue? It always shows as being connected(wifi symbol) but quite often will not transmit data so I have to off/on the wifi which is really annoying - is there any app that would say switch it off when screen goes off and then back on when I open the phone(I do not use a lockscreen and never have done) This problem has been since day 1 so I don't think it is a rom issue as it does it on all roms!
vladoots
It would seem so, yes. Sorry about that.
From your description it seems to be the ”ghost bug” which plagues Android 5.0 + and affects with the exact same symptoms cellular data, Wi-Fi or both - with or without an exclamation sign over their corresponding icon(s). There's no permanent fix at the moment, but you must know that Google itself rolled out 5.1, 5.1.1 and 5.1.2 trying to weed it out (and other bugs as well, but especially this one). It can affect any device, irrespective of the brand.
Another possible explanation would be a hardware fault - such as a bad antenna connection or worse.
There may very well exist an app like the one you're describing, but that function is built-in Android since at least 2.2. Check it yourself by entering system settings/Wi-Fi, then from the menu (the three dots) tap Advanced. Then tap ”Keep Wi-Fi on during sleep” and check ”Always” if it isn't already so. Note that if you have installed any power saving app, those too can disable Wi-Fi while the screen is off. Android itself does exactly that (and more), cutting off any radio data when the power is too low.
You may want to post this in Troubleshooting too. Let us know how it went! Best of luck! 
 charliepie
Today, 01:51 AM |#376
  
Member
92 posts
Thanks Meter: 14
Thanks for your suggestions, it does sound a bit like the ghost bug but it is annoying that there is no fix...my wifi during sleep was set to always so I've just changed it(a few hours ago) to never but I don't think that will make a difference somehow, a hardware fault is possible I guess but the random nature is weird? I am looking for an app that kinda toggles wifi off during sleep then on when screen wakes up - don't know if this will help(if hardware fault then I guess not!) perhaps I should stick it in troubleshooting as it is driving me nuts!

Hi everybody,
a couple of firmware versions and kernels later this topic is still not addressed.
On my P8000 I can regularly (say every 30-90 minutes) reproduce the following:
I am connected to a Wifi, the connection is good and I get decent transfer rates. After a while, no data gets through anymore, despite the wifi signal still being strong. After turning wifi off and on it immediately works again.
It does not matter what wifi network I connect to, it's the same at work, at home, at the hotel lobby - anywhere. And it has been like this ever since I got the phone, with stock and eragon ROMs.
The thing is: From looking at the phone I can not tell if it is connected or not. I have full wifi reception and full 4G, but still (as wifi has priority) as a matter of fact I am not connected. This is bloody annoying when waiting for an E-Mail or a whatsapp to come in, because I have to disable wifi to make sure I get the message on time.
Am I really the only one with this problem?
Cheers,
D

Hi,
I only bought the P8000 last week and observed this problem at home when I connected the P8000 to my WiFi network consisting of three access points on different floors of my house using the same SSID. The phone could not receive from or sent data to the internet after I changed the floor and the phone connected to the access point on that specific floor.
After changing the SSID of two of those access points and every access point using its own SSID now the problem seems to have gone. I don't have it anymore for three days now.

Hi,
while I have the same setup at home and at work (multiple access points with the same SSID) it is no option to change that setup. It's also a very common setup at public places.
At least this seems to narrow the problem down to a faulty implementation of the wifi drivers. Is anybody capable of looking at the sources or give me a pointer to the driver sources?
EDIT: Check out the app WiFi Roaming Fix - it is supposed to fix problems with many APs having the same SSID. I am trying it right now.
EDIT 2: OK, seems to work. The app crashes sometimes but does it's job. I have not been offline in the last 4 hours.

can you guys test this kernel version?
Changed to different wifi drivers ++
Works with 909 rom (eragon)
Is there any changes?

WiFi abbruch
tiltkoko83 said:
can you guys test this kernel version?
Changed to different wifi drivers ++
Works with 909 rom (eragon)
Is there any changes?
Click to expand...
Click to collapse
Hallo meine wifi Verbindung bricht ständig ab und muss neu gestartet werden

didi1404 said:
Hallo meine wifi Verbindung bricht ständig ab und muss neu gestartet werden
Click to expand...
Click to collapse
sorry english (or norwegian) only

For me this kernel solves the issue. Great work!

I have the problem after 30-60min the wifi signal is normal/strong but there is no dataflow at all. It only helps to restart the router. I have no problems with other wlan devices. the problem is the same on two p8000. I dont want to install any kernel or roms because of warranty.. i can send the phones back 14 days. If there are no official solution i need to refund them =(

tiltkoko83 said:
can you guys test this kernel version?
Changed to different wifi drivers ++
Works with 909 rom (eragon)
Is there any changes?
Click to expand...
Click to collapse
Please could you modify wifi in the latest kernel stock ROM 20151105?
Or modify wifi in visi0nary's kernel - http://forum.xda-developers.com/elephone-p8000/orig-development/kernel-visi0narys-kernel-t3226081
I am using it, is excellent, but would like to improve wi-fi.
Thanks.

tiltkoko83 said:
can you guys test this kernel version?
Changed to different wifi drivers ++
Works with 909 rom (eragon)
Is there any changes?
Click to expand...
Click to collapse
ok... so i'm a newbie, but i have the same problem with my p8000.
Can you explain how to apply that kernel version?
currently i have 3.10.65 kernel version, and custom build version 20151105..

tiltkoko83 said:
can you guys test this kernel version?
Changed to different wifi drivers ++
Works with 909 rom (eragon)
Is there any changes?
Click to expand...
Click to collapse
Could you describe what you did exactly to fix this problem?
I have the exact same wifi issue on the elephone P6000 and I am trying to fix it for months...
Thanks!

tiltkoko83 said:
can you guys test this kernel version?
Changed to different wifi drivers ++
Works with 909 rom (eragon)
Is there any changes?
Click to expand...
Click to collapse
Can you please do the same wifi adaptations in the latest core of the stock ROM 20151105?
Thanks.

Can you guys try the tiltkernel 1.5wifi to see if that helps or like me try the WiFi roaming fix app which was mentioned over on that thread and it seems to be better for me than the WiFi fixer(donate) app which I had been using for a while. I can't use that kernel as dt2w doesn't work for me unfortunately.

Looks like @tiltkoko83s fix works! If it can pass my tests I'll merge it into my kernel upstream.
Thanks tiltkoko83

I think I've noticed this on my P6000 Pro too.
Can anyone give steps to prove the bug exists?

tiltkoko83 said:
can you guys test this kernel version?
Changed to different wifi drivers ++
Works with 909 rom (eragon)
Is there any changes?
Click to expand...
Click to collapse
Hi tiltkoko83,
I've already written that latest stock ROM "20151105" (and earlier versions also) has serious Wifi performance problem. Now I have made a comparison phones: Elephone P8000 and Lenovo P770 - the same place, the same router, only one phone connected to router in the same time. Result: Elephone P8000 is 5 times slower than the old phone Lenovo P770. It occurs in areas with poor Wi-Fi signal.
Could you make for us Wifi modifications for latest kernel 20151105 please? Thanks.
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Weird WiFi issue in some apps after updating to Android Pie

Two days ago I got Android Pie update and recently I noticed some issues with following apps:
YouTube
Nintendo Switch Online
System update
Signal Private Messenger (well, this works sometimes...)
The issue is that those apps stoped working on WiFi. They work fine when I use mobile data (cellular connection) but simply refuse to connect when I use WiFi. Other apps work just fine (including web browser - Chrome).
What I have already tried:
Forgetting WiFi network and registering it again
Completely resetting network settings
Restarting phone
Cleared app data and cache for those problematic apps
Reinstalled the apps that can be reinstalled
None of the above helped fix the problem... Phone has stock Android straight from Xiaomi, I didn't mangled with it in any way.

For my WiFi is broken since Pie update.
In my case, Twitter and Twitch app refuse to load too. Even Google Photos wont sync, it says "waiting for WiFi connection" besides WLAN is in ON and working.
Cant access certain sites.
Funny thing is that, for eg twitch app won't work, while in the same time mobile version of twitch works perfectly fine
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tried factory reset already.

ShadyTurtle334 said:
tried factory reset already.
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Click to collapse
Good to know, I was thinking about doing that...
It is really hard to do something about it. I played around with DNS settings (they added that in Pie) but even changing DNS didn't seem to resolve the issue although YouTube started to work (for now at least, but I don't think that has anything to do with DNS changes). Other apps from my list are still broken...

Same issue for me when I was on stock Pie. I don't know why, but using a VPN fixes the issue for me if this can help

Im thinking about flashing CAF kernel https://forum.xda-developers.com/mi-a2-lite/development/caf-caf-kernel-mi-a2-lite-daisy-t3880135
It is using different WLAN driver. But this requires unlocked bootloader, and this will cause another data wipe... Also there is no certainty that this will fix the problem.
Have you tried connect to another WiFi? Maybe this is releted to ipv6/MAC adress/DNS. Router/Access point issue?

From what I see phones gets IPv4 address BUT it has two DNS addresses. One is IPv6 and the other one is IPv4. I think both point to my router. I haven't changed anything in router configuration and WiFi worked fine on Oreo... I will try different WiFi network tomorrow at work

Do you have bluetooth on? I found out that when m bluetooth is on, WiFi conwction ia really bad. This os only on pie.
Check out my thread. https://forum.xda-developers.com/mi-a2-lite/help/bluetooth-wifi-conflict-pie-update-t3883829

So, I tested my phone on my office WiFi and surprisingly apps that I mentioned on my list worked. It seems that Android Pie on my Mi A2 Lite doesn't work well with IPv6 WiFi networks. Office WiFi is IPv4 only and assigns two IPv4 DNS addresses while my home WiFi assigns two addresses as well, but one of them is IPv6. I will try to recofigure my home network and see if that will help (I guess @ShadyTurtle334 mentioned something about possible IPv6 problems)

Yep, switching network to IPv4 only works like a charm. Android Pie must have broken something because on Oreo everything was fine... Does Xiaomi has some sort of issue tracker?

Maybe post your findings here https://en.miui.com/forum-205-1.html
Yes, it is MIUI forum, but our A2 Lite is listed there, so i cant imagine better place.
Also, you should have app for that, i am not sure how is called in your language (orange icon with smiley emoticon?)
It seems that my Router/AP doesnt have options for ip configuration, maybe i am blind.
edit1; There are similar threads already. https://en.miui.com/thread-5119175-1-1.html
edit2; Forced IPv4 in AP settings, now WiFI works like a charm!!

WIFI Problem after PIE update
Hi, Irecently updated my phone to Android 9.
My phone model is:MI A2 LITE
There is a problem with WIFI. Some applications such as Instagram, google play game or Telegram cant use internet.
Somehow something like Firewall stop them, But other applications such as web browser,play store,... are connected to internet.
When I am using my SIM CARD data there isn't this peoblem.
I dont think the problem would relate to modem or wifi , because other mobile models dont have this problem and theyre working without any interruption.
Thank you to pay attention. Please say me how to provide this problem.

up !!

haj_farbod said:
up !!
Click to expand...
Click to collapse
Turn off bluetooth while youre on wifi...
https://forum.xda-developers.com/mi-a2-lite/help/android-9-pie-slow-wifi-t3896608

wenna.speedy said:
Turn off bluetooth while youre on wifi...
https://forum.xda-developers.com/mi-a2-lite/help/android-9-pie-slow-wifi-t3896608
Click to expand...
Click to collapse
it's off

The only way to fix network problems is to flash again to 9.6.4.0 Oreo and stick with it or 10.0.2.0 and OTA update to 10.0.3.0. Other versions seems to have corrupted modem.img and mess with SIM cards slots (swaps places and/or one of the SIM isn't working). Just check my other posts.

I never had problems after flashing 10.0.3.0 and I did it several times. There is no corrupted modem.img or something like that. These problems may occur when you downgrade from Pie to Oreo, that's why Xiaomi warned about it.

thorin0815 said:
I never had problems after flashing 10.0.3.0 and I did it several times. There is no corrupted modem.img or something like that. These problems may occur when you downgrade from Pie to Oreo, that's why Xiaomi warned about it.
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Click to collapse
Well no. Issues with the network started after OTA update to 9.6.11.0 thus the only way was to update further to Pie or to downgrade. I updated but issues persisted so the only way was to downgrade and reprogram sim slots.
All of this may be because of different parts' vendors so not all of the A2 Lite react the same, or you just didn't notice, because you don't use two sim cards at a time or/and bt, wifi & location at the same time. It may be max 1 mbit you can achieve on the wifi but for a phone is a decent speed. Personally I can't stand it, so I dirty flash 10.0.2.0 and now everything work as it should.
This is about network problems on Pie. So either you can't read or just stupidly assumed that everyone had their devices downgraded, then updated and thus network issues. And if you weren't be so lazy and read further, you would have known that modem.img from Oreo can solve network issues.
Sent from my Mi A2 Lite using Tapatalk

@thorin0815 And why would you flash several times if there were no problems at all? Reseting yeah to start fresh but flashing means something's wrong.
@wenna.speedy Turning off & on some features or messing with your modem settings while other devices work properly is not a solution.

locovibe said:
@thorin0815 And why would you flash several times if there were no problems at all? Reseting yeah to start fresh but flashing means something's wrong.
Click to expand...
Click to collapse
Thanks to some crappy Magisk modules and/or root apps touching my system partition.

problems dissapeard after changing my router
i had all these weird wifi problems with my xiaomi A2lite since the Pie updaTE. I changed my router with a new one and everything , all apps work fine,, Hope that helps