[Q] Wifi disconnecting on Lollipop - Galaxy S 5 Q&A, Help & Troubleshooting

Hi,
I've recently upgraded to lollipop and it is amazing. The only issue I am facing is my Wifi drops out constantly (at home, the office, everywhere). Smart Network Switch is disabled, so this isn't the cause. Are there any known fixes for this? I've read that it seems to be quite the issue.
Thanks in advance.
Ross

Ross_L said:
Hi,
I've recently upgraded to lollipop and it is amazing. The only issue I am facing is my Wifi drops out constantly (at home, the office, everywhere). Smart Network Switch is disabled, so this isn't the cause. Are there any known fixes for this? I've read that it seems to be quite the issue.
Thanks in advance.
Ross
Click to expand...
Click to collapse
I just went into settings / wireless and turned off smart network switching . cured it straight away

I always have it disabled and still happens. At first I thought it was my router, but it happens on every wireless network I connect to.

Related

[Q] Problem with WiFi

Hello,
Yesterday I got the Nexus 4 but I have the following problem:
When I connect it to WiFi, the connectivity bars go from blue to gray (not connected to Google) and the phone has no access to the internet (Play Store, browser, any other app). When I disconnect the WiFi, the connectivity comes back.
There are other devices connected to the same WiFi and they have internet connection. Only the Nex 4 does not.
Has anyone experienced this and have you found any solution?
Thank you in advance!
Does noone have any information?
I have this problem sometimes. I think a lot of the WiFi issues are JB bugs and hopefully they will be worked out with the next release that is coming soon.
grubbster said:
I have this problem sometimes. I think a lot of the WiFi issues are JB bugs and hopefully they will be worked out with the next release that is coming soon.
Click to expand...
Click to collapse
Hey, thanks for the reply. I also hope that this is a software issue and it will be fixed with an update soon. I searched for a while around the internet and the only interim solution I could find is to use WIFI Direct together with a Galaxy Nexus - I tried and it works indeed but it is very uncomfortable as you can imagine.
Any other suggestions are more than welcome
Have you already tried you phone with other routers?
Yes, I tried with two other routers and it was the same - connected but no i-net connection.

Galaxy S5 constantly connecting and disconnecting wifi

I have had my Galaxy for about 9 months now. Recently it has started to disconnect and reconnect to wifi constantly. It does this with my home wifi as well as guest, friends, establishments wifi. It will say "connected to xxxxx wifi" and then a few seconds later drop back to 4G and then a few seconds later say it's connected again. It does this over and over and constantly drains my battery now. Any ideas?
Sir,
Please wait until mods will move this thread to the device specific forum for more relevant answers.
For more questions or to have full access please register an account on XDA forum.
Stand by
Good luck
XDA Visitor said:
I have had my Galaxy for about 9 months now. Recently it has started to disconnect and reconnect to wifi constantly. It does this with my home wifi as well as guest, friends, establishments wifi. It will say "connected to xxxxx wifi" and then a few seconds later drop back to 4G and then a few seconds later say it's connected again. It does this over and over and constantly drains my battery now. Any ideas?
Click to expand...
Click to collapse
Which version of Android do you use? KitKat / Lollipop?
What about smart switch option in wifi menu? Is it on? If yes, try turn it off.
I've had this problem since Monday?
Thought it was my Router , but it happens across many other wifi connections?
Ive tried all the fixes on other sites but still occurring Could be the Lollipop Update?
WARKRIME said:
I've had this problem since Monday?
Thought it was my Router , but it happens across many other wifi connections?
Ive tried all the fixes on other sites but still occurring Could be the Lollipop Update?
Click to expand...
Click to collapse
So @ monday you have updated your phone?
Turn off Smart network switching in settings in WiFi section.
Dropping WiFi is common issue of lollipop. First recommended thing is wiping your phone completely via stock recovery.
Smart Network Switch is likely the cause -disable it
*Detection* said:
Smart Network Switch is likely the cause -disable it
Click to expand...
Click to collapse
This Worked , Can't believe it was something so simple!
All the other fixes online are about the S4-S3 and its going into the WiFi Setting to reset and disable other functions!
Thanks m8ty

Intermittent Wifi Disconnect - Logs included

My Nexus 6P has the bootloader unlocked but is running completely stock, un-rooted, vanilla android (MDB08M). Project Fi is my carrier. When I am at home and on *most* wireless networks, I see no issue. While I am at work, my wifi constantly disconnects and reconnects. I will pick up my phone, and it will either A) not have wifi (though I have previously been connected) and quickly reconnects or B) Will have wifi, but after some amount of use, will disconnect from wifi, then reconnect a few seconds later.
I've tried all the simple items:
Making sure "Keep wifi on during sleep" or whatever the setting is is turned on
Turn off optimization on Google Connectivity Services
Forget network and reconnect
etc...
I turned on verbose wifi logs and was able to catch a logcat of when the issue occured. The disconnect occured at almost exactly 9:29:00, as I saw my wifi go out and then almost immediately after the clock tick 9:29.
I can't find anything in particular that stands out as the cause or leads to a solution.
I assume it is some misunderstanding between my job's wireless network and my phone. My previous phone (Nexus 4) had none of these issues. I am unclear on whether this is a Marshmallow issue, Project Fi issue, or what software might be causing it. Since it only happens on this certain network, I am making the assumption it is most likely software and not a faulty wireless chip. I have no control over the wireless configuration of the network, so anything on that end is a non-starter.
Any help or direction on where to look next is greatly appreciated!
Dropbox link to txt logs: https://www.dropbox.com/s/co95ov2u5kps23s/wifi_log_092855.txt?dl=0
I have exactly the same issue. It seems to happen mostly at work - my phone is locked laying on my desk for some time, and when I pick it up and unlock it, there is no WiFi connection but it reconnects after few seconds. It happens randomly as sometimes WiFi connection is there after unlock. It also happend at my home wifi network, though it's more rare at home.
I have two friends at work having Nexus 6P and they don't have this issue, so it looks like something wrong with my unit. I have 'Keep wifi on during sleep' turned on. Any ideas?
manalesar said:
I have exactly the same issue. It seems to happen mostly at work - my phone is locked laying on my desk for some time, and when I pick it up and unlock it, there is no WiFi connection but it reconnects after few seconds. It happens randomly as sometimes WiFi connection is there after unlock. It also happend at my home wifi network, though it's more rare at home.
I have two friends at work having Nexus 6P and they don't have this issue, so it looks like something wrong with my unit. I have 'Keep wifi on during sleep' turned on. Any ideas?
Click to expand...
Click to collapse
I haven't made much headway but I have filed an Android bug here: https://code.google.com/p/android/issues/detail?id=196035
It has the attention of the networking devs. Any further evidence (bug report!) you can provide there would be extremely helpful.
manalesar said:
I have exactly the same issue. It seems to happen mostly at work - my phone is locked laying on my desk for some time, and when I pick it up and unlock it, there is no WiFi connection but it reconnects after few seconds. It happens randomly as sometimes WiFi connection is there after unlock. It also happend at my home wifi network, though it's more rare at home.
I have two friends at work having Nexus 6P and they don't have this issue, so it looks like something wrong with my unit. I have 'Keep wifi on during sleep' turned on. Any ideas?
Click to expand...
Click to collapse
I'm seeing this same issue as well, I submitted logs to the bug report opened by cpswaim, but I wonder if this is a different issue and I should have opened a new bug.
]grimm[ said:
I'm seeing this same issue as well, I submitted logs to the bug report opened by cpswaim, but I wonder if this is a different issue and I should have opened a new bug.
Click to expand...
Click to collapse
If those are your bug reports, the error in the reports:
FAILURE: LOST_PROVISIONING, NeighborEvent{elapsedMs=94908702, 192.168.1.1, [(null)], RTM_NEWNEIGH, NUD_FAILED}
is the same error I'm getting. My phone disconnects while the screen is off, I've just also caught it disconnecting with the screen on too, so I'm under the impression our situations are related, if not the same.
Thank you for the bug reports!
cpswaim said:
If those are your bug reports, the error in the reports:
FAILURE: LOST_PROVISIONING, NeighborEvent{elapsedMs=94908702, 192.168.1.1, [(null)], RTM_NEWNEIGH, NUD_FAILED}
is the same error I'm getting. My phone disconnects while the screen is off, I've just also caught it disconnecting with the screen on too, so I'm under the impression our situations are related, if not the same.
Thank you for the bug reports!
Click to expand...
Click to collapse
Not getting this error in my reports, but experiencing the same issue on stock 6.0.1 rooted. Can't find any solution.
qtpa2tnh said:
Not getting this error in my reports, but experiencing the same issue on stock 6.0.1 rooted. Can't find any solution.
Click to expand...
Click to collapse
I wasn't getting that error either, one of the Google engineers on cpswaim's bug asked me to open a new bug report instead and I did so here: https://code.google.com/p/android/issues/detail?id=197272
]grimm[ said:
I wasn't getting that error either, one of the Google engineers on cpswaim's bug asked me to open a new bug report instead and I did so here: https://code.google.com/p/android/issues/detail?id=197272
Click to expand...
Click to collapse
Thanks for the link!
Since Greenify's Aggressive Doze feature is what caused my status bar clock to freeze last time I had an issue, I disabled Greenify but my wifi issue persists (although not as severe). I got a logcat and saved it right after the wifi dropped and reconnected, anybody with some knowledge who can see what's going on in there?
Edit: The general consensus online is that this is a Marshmallow issue. I don't have unlimited data so at home on wifi, this is a killer.
So I reflashed my stock boot image (6.0.1_r3 MMB29M), flashed FED Patcher, flashed the latest systemless root (2.64), and deleted the legacy directory Chainfire had made for old root apps that hardcoded to su (I deleted /su/xbin_bind) to get Android Pay working again...
My wifi issues have disappeared. I've seen a lot of reports saying the issue mysteriously resolved itself, but could it have been anything I just did?
Edit: Wifi is still randomly shutting off while the screen is off, but will even sometimes turn back on. The intermittent connection dropping is gone though.
This has been a constant issue for me starting with the Developer Previews on my Nexus 5 and has now moved onto my Nexus 6P.
i'm getting sick and tired of these little issues. google needs to fix this **** asap. such bull**** to have to deal with this crap
I had this issue on my home network with my Samsung devices. My tablets and TV would always drop off. My router was a cheap Asus model and was showing its age. I bought the brand new Asus router
"Asus - Extreme Wireless-AC2400 Dual-Band Gigabit Router - Black
Model:*RT-AC87R/U"
And I have not had a single drop since. Even on marshmallow. Now I know this isn't a cheap or reasonable fix but it seems maybe older hardware is to blame. YMMV
Gizmoe said:
I had this issue on my home network with my Samsung devices. My tablets and TV would always drop off. My router was a cheap Asus model and was showing its age. I bought the brand new Asus router
"Asus - Extreme Wireless-AC2400 Dual-Band Gigabit Router - Black
Model:*RT-AC87R/U"
And I have not had a single drop since. Even on marshmallow. Now I know this isn't a cheap or reasonable fix but it seems maybe older hardware is to blame. YMMV
Click to expand...
Click to collapse
Unfortunately this is the same router with which I am having problems as indicated in my bug report. I've also found at least a few other anecdotal accounts of problems with other Quantenna-based routers as well. The evidence seems to be fairly sparse though, so it's hard for me to draw a meaningful conclusion from what I've seen so far.
For whatever it is worth, I currently have another user with a Nexus 6P on 6.0.1 on my network on that device doesn't seem to have the same issues that I am seeing.
]grimm[ said:
Unfortunately this is the same router with which I am having problems as indicated in my bug report. I've also found at least a few other anecdotal accounts of problems with other Quantenna-based routers as well.
Click to expand...
Click to collapse
Well that's lame. I have had no problems since I got mine. I did get my own cable modem at the same time but don't see any connection there.
I'm guessing we're waiting on an update from Google?
My random disconnects have stopped, but wifi will still randomly shut off/turn back on in my pocket. Even in Safe Mode.
Flashing factory images and factory wiping haven't solved the problem.
Is anyone looking into this?
Edit: Even after the January security patch update, still having these issues.
It seems like my wifi issues have resolved themselves somehow.
FWIW, I was having a similar problem on my Sprint HTC One M8 after upgrading to Marshmallow. The problem happened on every wifi I would connect to... work, home, a friend's place, etc. After trying out several things, I finally fixed it by uninstalling "Sprint Connections Optimizer". I tried disabling it first, but every time I disabled it and went back into the settings, it appeared to still be enabled. So I'm not sure if disabling it was actually working.
To uninstall it, you need to go into "Manage apps" from your apps drawer to find it. I don't think it's listed with an icon in your usual set of stock and installed apps.
Posting this just in case no one has thought of it before, or someone knows something and hasn't spoken up. I have noticed a lot of people mentioning they only have this issue at work, and others who have "changed their router" and stopped the behavior.
I run a Cisco Wireless LAN Controller at home, with multiple APs (Cisco 1252 a/g/n). Typically this gives me better performance and stability than most consumer-grade stuff, but I have to wonder if there isn't a setting on this enterprise-grade stuff that is related to the disconnect issue, or if this is truly simply a Marshmallow bug. This could also be the common link with people who only have this issue at work, their work may be using Cisco enterprise Wireless gear.
I will do some more digging, I did have a spot in my house where my phone would randomly disconnect, turning on "Fast SSID Change" stopped that, so I am hoping there is something that might affect this disconnect while sleeping thing as well. I noticed my WLC reports my phone as being "Power Save Mode ON" in the client info page.
More to come if I discover something.
I have same issue at home, stock Nexus 6p and an AT&T router. Limited Data plan, so it's frustrating to be at home sitting 2' from WiFi router & drop off.
If people might say how they get their log errors & post them to Google, that'd be interesting reading.
I'm 90% sure this is a software bug. My wifi is consistent & always on, iPhones & Note 3, Roku, & PS3 have no problems connecting.
Please Google find this bug & patch it!!! (And while you're at it, re-enable Dark Theme setting!!)
REkzkaRZ. com
Add me to the list of people having this problem. I am between several different locations on a typical week and so far, the Cisco AP's by far have the most issues. In fact at my locations with Ubiquiti AP's, I have a perfect connection with no drops.
I really hope this gets resolved soon as well. Many applications are unusable when the WiFi does its drop and reconnect dance.

Wi-fi disconnecting? Anyone having the same problems?

I've not yet received my OP5. I'm in China.
A lot of people here is having really severe wifi disconnection problems. No more wifi data but wifi is still connected, have to reconnet wifi to have data.
I cannot post link yet. But there are all kinds of report on the Chinese official OP forum.
I'm just wondering if any of you guys are having the same problems?
I'll test the phone once I receive it.
Yes another issue, it's done it twice on me in the last 1w hrs, the wifi icon completely disappeared as if it switched off, I'm noticing some worrying issues out the box.
That should have said last 12hrs.
For me the problem is different. WiFi continues on, it's like it's properly connected, however I can't access anything on the web. I have to disconnect WiFi, use mobile data, and connect WiFi again. Then it works for 2 minutes, and stops accessing any websites again...
So, the wifi only works for about two minutes. I quit and now I'm only using mobile data...
It happens with all access points and wifis I've tried.
Same problem here. WiFi connection is always on, but after 5 minutes after connecting there is no more data send.
Resix said:
Same problem here. WiFi connection is always on, but after 5 minutes after connecting there is no more data send.
Click to expand...
Click to collapse
Yep, exactly the same with mine.
mrasquinho said:
Yep, exactly the same with mine.
Click to expand...
Click to collapse
Okay I'm glad I'm not just imagining it. I'm having the exact same problem. I thought it was my home network at first but good to know it's the phone. I wonder how long it's going to take for a fix?
Try turning off smart network switch in wifi settings, I had the issue, but when I turned that off I had no issues.
Thanks. Will try. I hope that solves it.
DespairFactor said:
Try turning off smart network switch in wifi settings, I had the issue, but when I turned that off I had no issues.
Click to expand...
Click to collapse
have you try?
Hi, I've had major problems within my 5 Ghz Wifi: The transfer rate was suuuper slow (0.15 kb/s and less) and after a while down to nothing.
But with switching to 2.4 Ghz everything works fine. So just go to wifi settings -> advanced and select 2.4 ghz only. That solves my problems for now. Hope a future update solves the 5 ghz issues.
I've had no problems with wifi on my OnePlus 5.
DespairFactor said:
Try turning off smart network switch in wifi settings, I had the issue, but when I turned that off I had no issues.
Click to expand...
Click to collapse
Temporary solution for now.
I confirm it helps.
Seems to have worked so far. Will update prob, tomorrow. Thanks
hlynexus4 said:
have you try?
Click to expand...
Click to collapse
Having the same problem, disabled the "Smart WiFi-switch" in the advanced settings and hope it is fixed for now.
OnePlus haven't dispatched an update yet to fix this and other bugs...
Sad...
smart network is off but not work here.
i have the same problem with wifi. now i turned off smart wifi switch and i will try.
but i have the same problem with 4g. There is field, but i can't do anything, i can't surf on internet, like i haven't connections. Switch off data and turned on it and it work.
strange. very strange
same issue here. I've removed all files with 'cne' via recursive search in /system and commented out the entry in build.prop. seems to be a little better but still need some time to confirm
OnePlus 5 WiFi Issues Guide

WiFi issue

I am facing an issue that my WiFi doens't scan nearby networks.
In my WiFi. It disconnects automatically and then on reconnecting it shows no internet access.
Many times it's not able to connect to a network just saved comes and then WiFi shows to be disabled
deveshmirani said:
I am facing an issue that my WiFi doens't scan nearby networks.
In my WiFi. It disconnects automatically and then on reconnecting it shows no internet access.
Many times it's not able to connect to a network just saved comes and then WiFi shows to be disabled
Click to expand...
Click to collapse
It's WiFi bug comes with pie update, contact service centre nearby & ask them to downgrade to Oreo..... they will do it.
I'm really getting disappointed with Nokia day by day. I expected so much. Now I'm seeing stupid issues, like the primary mic not working, and people having wifi bugs. I mean I spent my hard earned money buying this phone, for it to f**k me over in this fashion. They release updates, but they don't do anything about fixing bugs.
deveshmirani said:
I am facing an issue that my WiFi doens't scan nearby networks.
In my WiFi. It disconnects automatically and then on reconnecting it shows no internet access.
Many times it's not able to connect to a network just saved comes and then WiFi shows to be disabled
Click to expand...
Click to collapse
I also face it everyday but reboot resolves the issue.
No such issues with my phone
No wifi issues here as well.
Even Im Facing this issue
Doesn't detect nearby Wifi Devices
And yes Reboot Helps
try to reset your phone it work for me
raza_maestro said:
No wifi issues here as well.
Click to expand...
Click to collapse
Same with me. Never experienced wifi issues.
I'm also facing the same issue now from last 2 days. Any other fix available for this? Other than factory reset or downgrade. Also the restart option doesn't seem to work for me everytime.
Works with other hotspots
mdvirgo92 said:
I'm also facing the same issue now from last 2 days. Is any other fix available for this? Other than factory reset or downgrade. Also, the restart option doesn't seem to work for me every time.
Click to expand...
Click to collapse
I tried using hotspots from my friends and it seems to be working for some reason. No delay in connecting, doesn't get disconnected automatically, doesn't shows no internet. All working fine. Now the question is why with my router at home? Has anyone here tried resetting their routers? Also, are there any compatibility issues going on, if yes then maybe our phone no longer supports old gen routers.

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