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Unable to access internet through Wifi after lollipop update

Guys,
I'm not able to access internet through my wifi network since 3 days after the lollipop update .. The wifi network is working fine as others are able to connect and access internet but for only me it's not working.
I tried soft resetting the phone by holding the power and volume down key for 10 secs and also cleared the cache partition but to no avail.
Someone please help me out to sort out this problem as I really need internet to connect to essential services on my mobile. Thanks in advance, appreciate your help!

Are you running a custom ROM or kernel?

I got the update notification and downloaded the update.

So you're running a stock ROM and kernel? Are you able to access your data network over 3g?

I'm not sure about these terms but I just got the official update. Yes, I'm able to access internet on mobile data.

Sounds to be like something went wrong during the update process.
I have a custom ROM on my phone and, if I use the wrong kernel with my custom ROM, wifi does not work.

No.. The weird thing is I took it to get it checked at a mobile shop. When he connected to his Wi-Fi it was able to access the internet. It's not working only for my Wi-Fi network it seems. He was saying it has to be formatted but I don't want to lose my data ?

Guys, as a last resort I have finally formatted my mobile and backed up settings. Now, it's not even defecting my Wi-Fi network. And as said earlier, I'm able to connect and access internet on my other devices. This is really confusing I'm not able to figure out what's wrong. Many of my friends who have Moto G are also facing this same problem. I hope there's an upcoming update from Motorola to fix this issue asap. ?

Change channel
Change your wifi channel from your routrer settings page to under 12 wifi will work . Use channels 1-11 for lollipop roms .

minhaj18 said:
Guys,
I'm not able to access internet through my wifi network since 3 days after the lollipop update .. The wifi network is working fine as others are able to connect and access internet but for only me it's not working.
I tried soft resetting the phone by holding the power and volume down key for 10 secs and also cleared the cache partition but to no avail.
Someone please help me out to sort out this problem as I really need internet to connect to essential services on my mobile. Thanks in advance, appreciate your help!
Click to expand...
Click to collapse
I faced same issue few days ago..
Possible solution (try all one by one)
Switch encryption mode in wifi router (TKIP <=> AES)
Change name of wifi (Don't use space)
Change security type (WEP <=> WPA <=> WPA2)
After each step restart router and check if you can still connect.
Worked for me
Also check channel as mentioned by @ankushv ... AFAIK channel between 1-11 is must for most android phones

Thanks for your reply. When I checked my phone later sometime it showed my Wi-Fi network and I immediately connected it. But it works sometimes and doesn't at other. I hope google engineers are aware of this Wi-Fi issue and going to release a patch update soon.

A big bug encountered in 5.0.2 stock android version on my Moto G
Guyzz plzz help ,
i think this is a kind of bug encountered on my Non-rooted Pure Stock Motorola Moto g android version 5.0.2 ; i am facing problem of call dropping , voice skipping , when someone calls me I'm not able to listen other person's voice , sometimes voice skips , and same happens when someone calls me , when playing any audio/video my phone automatically stops it after seeking it up-to 3-4 seconds only , but when i connect my phone with my earphones or any external multimedia speakers then everything works fine. i tried factory/hard reset but didn't worked, wiped cache partition :crying:

Guys,
Just one quick question. Is the Wi-Fi connecting issue fixed in the new Android 5.1 lollipop update?

I have Lollipop 5.02 on my xt1032 and I have no problem connecting to and searching for networks.

Internet connectivity problems

Hey guys,
I have a problem with my nexus, I've noticed that my internet on my phone is acting quite...strange to say. I have a dual band router(d-link 880l) and on my phone I only use the 5GHz one. it's the only device in my home that has problems.
The problem is that when searching something using the google bar it takes ages until I get the desired result, on youtube app sometimes when I open it ,it won't load anything,the second I close it and open it again it works,some videos just refuse to start until i restart the whole application, sometimes whatsapp doesn't connect to their server I have to restart the app to get messages, or to see las act of people,on facebook messenger is the same story,when i send a message it won't send ,it acts like I have no internet connection,until I restart the app. Ironically I get CONSTANT 81mb/s download and 91mb/s upload in speedtest.net app.
I really don't know what to do ,i've forgotten my network,tried connecting on 2.4GHz,put my wif i mode only in 2.4GHz,enterd recovery cleard cache partition,unninstaled whatsapp,youtube,fb messenger,google app,deleted all google play services data,restarted phone,neither of those fixed it...
Can you help me...?

Are you running the latest stock ROM or some other ROM/kernel combination?

audit13 said:
Are you running the latest stock ROM or some other ROM/kernel combination?
Click to expand...
Click to collapse
I'm running rastapop 5.1.1 LMY48I with elementalx 4.04 since august 2015 with no fancy kernel settings or mods, just adblock and xposed over the top.I started to have this problem since november.
I did a factory reset on the router and I still have the problem.

To rule out software being the problem, I recommend flashing back to stock to see if the issue goes away.

I own a D-link DIR-850 (dual band AC router as well) and I am experiencing kind of the same problems. I have a Nexus 5 with latest firmware (MMB29S) but have had these issues for a while already. My girlfriends HTC One mini suffers from these problems as well. Most annoying is the seemingly random disconnects from whatsapp, I guess caused by Google Play Services being unreachable as at that same time also the Play store and other services relying on it are unreachable. Not sure whether this is an Android bug or caused by a bug in the Dlink router, which off course has been reset to factory defaults and checked for updates several times
Strange thing is that at the times that the Play Services are unreachable, other (plain internet based) services such as browsing with Chrome are working just fine.

I did some research on this compatibility issue between an android phone and a d-link router after I discoverd I'm not the only one.
The problem turned out to be some bug that is present in a way or another in android since lollipop , I think that lollipop(my case) is getting stuck when trying to do a DNS lookup ,but the problem is that it only happens on my home network, I don't have any problems at my friends wi fi or a public one. So my router isn't playing well with lollipop or the other way around.
The only solution I found to this problem is to disable ipv6 on your router or on the phone. So I did ,made a script that changes a value in a file, here it is : "echo 1 > /proc/sys/net/ipv6/conf/wlan0/disable_ipv6". With this I disabled ipv6 protocols on my phone(i've verified "disable_ipv6" file just to be sure that the value is "1") . Everyone bragged about it that it sloved their problem. Well guess I'm not that lucky,the problem still persists on my phone...
I've tried everything in the book...guess that this brand new 150 dollar router is not that impressive as they say...
I don't really want to factory restore my phone,I want to be my last option...the guy above me said that it did the factory reset thing and it didn't work so guess that it isn't an option after all...
If someone can help me(us), i will be very pleased...

At my workplace we have an Asus RT66NU providing the wifi, where I have never had any problem with this.
As you are suspecting it has something to do with the ipv6 stuff, I'll be experimenting with this a bit to see if something changes. First test is putting the autoconfiguration setting to SLAAC+stateless DHCP.
Next step will be disabling ipv6 at all.

renearts said:
First test is putting the autoconfiguration setting to SLAAC+stateless DHCP.
Click to expand...
Click to collapse
I tried with PPPoE( my internet connection ) on ipv6 that is shared with my ipv4 session with SLAAC + stateless DHCP and stateful DHCPv6 . At first it was promising but in the end it didn't really solve my problem. Just for the record ,I had my ipv6 settings before on local connectivity only .

WiFi slow, Facebook, YouTube, Playstore images

Googled links acknowledging WiFi issues but nothing here? I can't be the only one. Best solution I've found until LG fixes in an update is to run DNSet from the play store. It changes DNS servers for phone to Google's.

Summit1 said:
Googled links acknowledging WiFi issues but nothing here? I can't be the only one. Best solution I've found until LG fixes in an update is to run DNSet from the play store. It changes DNS servers for phone to Google's.
Click to expand...
Click to collapse
Honestly, I've had no issues whatsoever with my WiFi
Long live doodoo

I've had wifi drop pretty frequently to the point i have to turn off data in my home.

I changed my home router to use OpenDNS rather than my ISP's DNS servers, which seemed to fix the issue, but after a while the problems have returned. I've tried booting to recovery and clearing the cache. Right now running DNSet app is a workaround that's working.
I have a Nexus 7 2013 tablet running same 6.0.1 Android and have no issues with it, which leads me to believe the problem is not my router but the LG G5 device.

The saga continues . . . my wife's Samsung Galaxy S6 has worse problems than my LG G5. Hers won't even download or update apps on Play Store. Sometimes Facebook just "spins" trying to update. Meanwhile my Nexus 7 never has had the slightest problem, and all three devices are running Android 6.0.1.
I reset my Belkin AC1200FE Dual-Band Wireless Router to factory settings and reconfigured the 2.4 and 5Ghz access points. I then went on both our phones to "Backup & Reset / Network settings reset" and did that. So far, so good.

My WiFi is slow as well. I went from 171mbs to 30 mbs. I can't figure our what would cause this. What's the difference between my old M9 and the G5

I'm thinking it's Android 6.0.1 affecting certain devices. My wife's Galaxy S6 had zero issues before updating to Marshmallow.

BR7fan said:
My WiFi is slow as well. I went from 171mbs to 30 mbs. I can't figure our what would cause this. What's the difference between my old M9 and the G5
Click to expand...
Click to collapse
I was having the same painfully slow wifi issue on my home network. It was "Return of the Slowskis". Turned out to be using Duel Band Router. What I did to resolve my issue was make my router 2.4GHz: g, n.... 5GHz I set to AC only. Each has with different names as well. Then I reset the phone's network settingsbto make sure cache was dumped. Restarted the phone.... Set the phone to 2.4GHz and off to the races I go.

December 2020 security update is now available

Hi,
Just received it, but only 3,6 MB. So I guess none of the bugs have been fixed.
Cheers

Add another email account and Customize your Pixel still present

Updated today, did usual reset through recovery, my daisy works fine. Atm zero annoying tips in settings.

Will the December update fix the multitasking bug on Mia2 lite ???

So I just updated to V11.0.16.0 via fastboot.
I am still having the same problem (since my first upgrade to Android 10 about a few months ago) with my Wi-Fi. Every 20-30 seconds, Wi-Fi connection is lost. Then after a few seconds of waiting, it is established again. Then after 20-30 seconds, Wi-Fi is again lost. It goes on like that, endlessly until I just deactivate Wi-Fi and use mobile data... but this cannot be the solution, don't the Dev's have to notice something is wrong with Wi-Fi??
Is anybody else having the same problem with Wi-Fi?

WaveAbuser said:
So I just updated to V11.0.16.0 via fastboot.
I am still having the same problem (since my first upgrade to Android 10 about a few months ago) with my Wi-Fi. Every 20-30 seconds, Wi-Fi connection is lost. Then after a few seconds of waiting, it is established again. Then after 20-30 seconds, Wi-Fi is again lost. It goes on like that, endlessly until I just deactivate Wi-Fi and use mobile data... but this cannot be the solution, don't the Dev's have to notice something is wrong with Wi-Fi??
Is anybody else having the same problem with Wi-Fi?
Click to expand...
Click to collapse
Before upgrading to Q, on P, zero wifi' s issues ?
Maybe something' s changed in your area, new wifi signals could interfere with your device.
Have you checked other devices, like a pc or other mobiles ?
If your router is dual band you might try 5ghz, daisy works fine in my experience on 5ghz regardless of android version.
Did you try a reset from settings or recovery in these months in search of improvements ?
Personal curiosity, why did you use fastboot for updating your device ?

srepole said:
Before upgrading to Q, on P, zero wifi' s issues ?
Click to expand...
Click to collapse
That is correct.
srepole said:
Maybe something' s changed in your area, new wifi signals could interfere with your device.
Have you checked other devices, like a pc or other mobiles ?
If your router is dual band you might try 5ghz, daisy works fine in my experience on 5ghz regardless of android version.
Click to expand...
Click to collapse
I only have a 2.4GHz router, but the problem is happening no matter which channel I choose on the router setup (i.e. the frequency within the 2.4GHz band).
We have several Wi-Fi devices in this household, including Wi-Fi repeaters to strengthen the Wi-Fi signal around the house... end user devices include multiple notebooks that use Wi-Fi access, a Smart TV and I also use another smartphone as a backup (Nexus 4) and neither of these devices does have any problems with the Wi-Fi.
Also, my brother is using the same phone the same way (with fastboot flash every time there is an update available) and he is having the exact same problems with Wi-Fi on his Mi A2 Lite.
Also, the Wi-Fi issues are the same when I am at the library and connected to a different Wi-Fi. So in my opinion it is unlikely that there is a problem with the Wi-Fi at home.
Around the time the Android 10 update became available, I started activating Bluetooth on my device 24/7. However de-activating Bluetooth has no effect and my Mi A2 Lite still loses Wi-Fi connection just as often.
srepole said:
Did you try a reset from settings or recovery in these months in search of improvements ?
Click to expand...
Click to collapse
Reset from settings only, but it should not matter because I am flashing all partitions every month, whenever an update is available and the problem is happening as soon as I completed the flash and started the device for the first time.
srepole said:
Personal curiosity, why did you use fastboot for updating your device ?
Click to expand...
Click to collapse
I am using Magisk to gain root access to this device. There is a guide on XDA that I follow for doing the update via fastboot, so that I can continue using Magisk. As far as I know, OTA update still fails when any of the partitions has been tampered with, for example by installing Magisk and patching boot.img.

WaveAbuser said:
That is correct.
I only have a 2.4GHz router, but the problem is happening no matter which channel I choose on the router setup (i.e. the frequency within the 2.4GHz band).
We have several Wi-Fi devices in this household, including Wi-Fi repeaters to strengthen the Wi-Fi signal around the house... end user devices include multiple notebooks that use Wi-Fi access, a Smart TV and I also use another smartphone as a backup (Nexus 4) and neither of these devices does have any problems with the Wi-Fi.
Also, my brother is using the same phone the same way (with fastboot flash every time there is an update available) and he is having the exact same problems with Wi-Fi on his Mi A2 Lite.
Also, the Wi-Fi issues are the same when I am at the library and connected to a different Wi-Fi. So in my opinion it is unlikely that there is a problem with the Wi-Fi at home.
Around the time the Android 10 update became available, I started activating Bluetooth on my device 24/7. However de-activating Bluetooth has no effect and my Mi A2 Lite still loses Wi-Fi connection just as often.
Reset from settings only, but it should not matter because I am flashing all partitions every month, whenever an update is available and the problem is happening as soon as I completed the flash and started the device for the first time.
I am using Magisk to gain root access to this device. There is a guide on XDA that I follow for doing the update via fastboot, so that I can continue using Magisk. As far as I know, OTA update still fails when any of the partitions has been tampered with, for example by installing Magisk and patching boot.img.
Click to expand...
Click to collapse
If the wifi' s issue began for both devices, yours and your brother' s one, after you decided to use magisk on stock rom it could maybe be the monthly flash procedure the reason of such problem.
Have you tried to flash a custom rom and check if issue continues to occur ?
Personally, as reported, i' m using 5ghz wifi without any issues, zero disconnections on last stock december build.

srepole said:
If the wifi' s issue began for both devices, yours and your brother' s one, after you decided to use magisk on stock rom it could maybe be the monthly flash procedure the reason of such problem.
Click to expand...
Click to collapse
I think I was not as clear in the post above. We have both been using the Mi A2 Lite with Magisk and Android 9 since December 2018. So we used Magisk to root the phones right when we got the phones. We had no issues with Wi-Fi on Android 9 with Magisk. Only when we updated to Android 10 in spring/early summer 2020, we encountered the connection issues.
srepole said:
Have you tried to flash a custom rom and check if issue continues to occur ?
Click to expand...
Click to collapse
I did not do that because most Custom ROMs that I found for this device have problems on their own with some features, and I like having a nearly stock Android experience. However, I get your point that this might be a good opportunity to check whether or not this is a problem with the official Xiaomi ROM or the Mi A2 Lite's Wi-Fi modem, i.e. a hardware problem maybe.
srepole said:
Personally, as reported, i' m using 5ghz wifi without any issues, zero disconnections on last stock december build.
Click to expand...
Click to collapse
Could you check if your Mi A2 Lite works on 2.4GHz Wi-Fi without disconnection issues? From my experience, 5 minutes of testing would be enough. Usually I see the first disconnections within 30 seconds after I activated Wi-Fi (2.4GHz) and disabled mobile network.

WaveAbuser said:
I think I was not as clear in the post above. We have both been using the Mi A2 Lite with Magisk and Android 9 since December 2018. So we used Magisk to root the phones right when we got the phones. We had no issues with Wi-Fi on Android 9 with Magisk. Only when we updated to Android 10 in spring/early summer 2020, we encountered the connection issues.
I did not do that because most Custom ROMs that I found for this device have problems on their own with some features, and I like having a nearly stock Android experience. However, I get your point that this might be a good opportunity to check whether or not this is a problem with the official Xiaomi ROM or the Mi A2 Lite's Wi-Fi modem, i.e. a hardware problem maybe.
Could you check if your Mi A2 Lite works on 2.4GHz Wi-Fi without disconnection issues? From my experience, 5 minutes of testing would be enough. Usually I see the first disconnections within 30 seconds after I activated Wi-Fi (2.4GHz) and disabled mobile network.
Click to expand...
Click to collapse
Checked rn, 10 mins on 2,4 ghz, wifi works fine, zero disconnections.
About custom rom, you could try los17.1 from Reujea0 or crdroid from Opal. Imo los and crdroid roms are very close to stock experience. Moreover, i recently read on los17.1 thread that dev would like to switch to next release, los18, anytime soon.
And yeah, you should avoid it isn' t an hardware failure.

srepole said:
Checked rn, 10 mins on 2,4 ghz, wifi works fine, zero disconnections.
About custom rom, you could try los17.1 from Reujea0 or crdroid from Opal. Imo los and crdroid roms are very close to stock experience. Moreover, i recently read on los17.1 thread that dev would like to switch to next release, los18, anytime soon.
And yeah, you should avoid it isn' t an hardware failure.
Click to expand...
Click to collapse
Thanks for checking this out and getting back at me. I did some further research, as I found out that another user on mi.com (the official Xiaomi forums) reported that when updating to Android 10, he had problems with switching between WiFi's (switch took a long time, download/uploade rate on WiFi very slow, https://c.mi.com/thread-2854872-1-0.html).
I then disconnected the repeaters on my network and found out that WiFi on my Mi A2 Lite is working without any problems, as soon as the WiFi router is the only WiFi host and no repeater is used to extend the range of the WiFi network. Maybe there is a problem when the device is handed over between repeater(s) and router within the same WiFi.
The Mi A2 Lite is my daily driver. As soon as LOS reaches official status, I will flash it on my device and try it out. For now, I will just continue using Mobile Data.

I think after update phone has less lag. Still have to reboot, but it is a little better

matemusic said:
I think after update phone has less lag. Still have to reboot, but it is a little better
Click to expand...
Click to collapse
I have read there is a new update, check it out and tell us if lag has improved

New WiFi connection issues with old CM ROMS

I recently fired up a Nook Tablet running CM 12.1 and found to my surprise that it would not connect to my router. I am 96% sure that when the router was recently replaced by ATT, I turned on both of my Nook Tablets (and everything else in the house) and got them set up on the new router, SSID, password, etc. Everything was fine.
But now it's not. I should add that I have a variety of relics with old OS that have no trouble connecting to the router (an old KitKat sim-less phone, Nook Simple Touch e-readers, etc.) as well as more current devices (also no problem there). It's just these two Nook Tablets, one with CM 12.1 and the other AOSP 7.0.
I took the tablets to the local library and had no trouble connecting to their WiFi (of course, it's not secured...).
I can see the tablets trying to connect to the saved router (yep, I did "forget" it and start again) but then they just give up and try again and again periodically. I captured a very lengthy and mostly incomprehensible logcat of such a session but I can't see anything that jumps out and says "this is the problem!!!".
Any ideas? (I've thought about wiping the tablets--I have backups--and starting from scratch...I'd rather not...)

nmyshkin said:
I recently fired up a Nook Tablet running CM 12.1 and found to my surprise that it would not connect to my router. I am 96% sure that when the router was recently replaced by ATT, I turned on both of my Nook Tablets (and everything else in the house) and got them set up on the new router, SSID, password, etc. Everything was fine.
But now it's not. I should add that I have a variety of relics with old OS that have no trouble connecting to the router (an old KitKat sim-less phone, Nook Simple Touch e-readers, etc.) as well as more current devices (also no problem there). It's just these two Nook Tablets, one with CM 12.1 and the other AOSP 7.0.
I took the tablets to the local library and had no trouble connecting to their WiFi (of course, it's not secured...).
I can see the tablets trying to connect to the saved router (yep, I did "forget" it and start again) but then they just give up and try again and again periodically. I captured a very lengthy and mostly incomprehensible logcat of such a session but I can't see anything that jumps out and says "this is the problem!!!".
Any ideas? (I've thought about wiping the tablets--I have backups--and starting from scratch...I'd rather not...)
Click to expand...
Click to collapse
Try booting to recovery mode and wipe the cache partition, just in case there is cached data causing issues, but do not factor reset.

Droidriven said:
Try booting to recovery mode and wipe the cache partition, just in case there is cached data causing issues, but do not factor reset.
Click to expand...
Click to collapse
Thanks for your response. I should have tried that (if I didn't already) so I did this morning to be sure, with a known working-at-the-time backup of the CM12.1 ROM. Still no dice.
I got to thinking about the possibility of ATT sending out a security patch or something and then thought about an old repeater I had in a closet (not so old that it was not set up with the new modem). It's one of those WWRT flashed Linksys modems. Ancient. Was working the last I tried, but I thought maybe it would not be able to pass along whatever potential security issues the newer ATT modem/router was exhibiting with this ROM.
I was right. It connected right away to the repeater, full internet access, etc.
Here's what else I know so far. I have a handful of other ROMS from CM11 up to LNOS 14.1, all backed up from a known working configuration. It just happens that the CM 12.1 ROM gave the best performance on the tablet (admittedly near the edge) and that's where I settled eventually.
All of the backups, when restored, connected to the new ATT modem without issue.
So....I can only guess that the developer of the CM 12.1 ROM left something out which hasn't shown up until now. Interesting that even the CM 11 ROM connects without difficulty.
Now I need to decide what to do with the 8 GB tablet (the 16 GB version running AOSP 7.0 magically works after many an attempt to connect to the ATT modem). I hate to go back to CM 11 because many websites don't display properly with available browsers and there are other SSL issues as well.
Maybe take another look at CM 13....or wait. I won't have this ATT modem forever. Perhaps the tablet will work again with some other setup (as it does with open networks now).

nmyshkin said:
Thanks for your response. I should have tried that (if I didn't already) so I did this morning to be sure, with a known working-at-the-time backup of the CM12.1 ROM. Still no dice.
I got to thinking about the possibility of ATT sending out a security patch or something and then thought about an old repeater I had in a closet (not so old that it was not set up with the new modem). It's one of those WWRT flashed Linksys modems. Ancient. Was working the last I tried, but I thought maybe it would not be able to pass along whatever potential security issues the newer ATT modem/router was exhibiting with this ROM.
I was right. It connected right away to the repeater, full internet access, etc.
Here's what else I know so far. I have a handful of other ROMS from CM11 up to LNOS 14.1, all backed up from a known working configuration. It just happens that the CM 12.1 ROM gave the best performance on the tablet (admittedly near the edge) and that's where I settled eventually.
All of the backups, when restored, connected to the new ATT modem without issue.
So....I can only guess that the developer of the CM 12.1 ROM left something out which hasn't shown up until now. Interesting that even the CM 11 ROM connects without difficulty.
Now I need to decide what to do with the 8 GB tablet (the 16 GB version running AOSP 7.0 magically works after many an attempt to connect to the ATT modem). I hate to go back to CM 11 because many websites don't display properly with available browsers and there are other SSL issues as well.
Maybe take another look at CM 13....or wait. I won't have this ATT modem forever. Perhaps the tablet will work again with some other setup (as it does with open networks now).
Click to expand...
Click to collapse
You might try flashing different versions of modem for your tablet to see if any of them work better. Yeah, it sounds like something might have changed in CM but I doubt it is anything the ROM developer did, it is more likely something that the CyanogenMod team changed in the CM source code. I had a Straight Talk Galaxy S3 years ago that didn't require a SIM to be used on the Straight Talk network but when flashed with CM ROMs, it wouldn't connect to mobile data or be able to send MMS without a SIM inserted, this was around the same time as your ROMs were built. The 4.4 ROMs worked without the SIM but the last few builds of 4.4 and above ROMs would not work without the SIM. This was a result of something that the CM team changed in the device's RIL(radio interface level).
You may be facing an issue that is also caused by something they changed in your later ROMs. It could also be because things have changed in the networks that we use today, different bands, network types and protocols.