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[Q] Nexus 5 Mobile Data When on Wifi

Hi all,
I am having an issue with my Nexus 5 using huge amounts of my mobile data (T-Mobile) when connected to wifi even when I'm not using it. What's crazy is that this keeps happening almost exclusively between 2-6am when I'm not awake. It also happens to an even further extent when I'm connected to wifi at work and not using my phone either. Heres a breakdown:
11/12 5:48 AM - 27.57 MB
11/13 3:33 AM - 12.42 MB
11/14 5:15 AM - 14.21 MB
11/12 2:53 PM - 49.57 MB
11/13 2:39 PM - 27.97 MB
I called T-Mobile and they said that it shows that I definitely used my data during those times. I have almost nothing running in the background that uses any data and have turned off my GPS to see if that will help.
Anyone else having the same problems or have any advice?
Thanks,
Chris

Only thing that comes to mind is that your wifi connection is being dropped for some reason, and your phone switches to mobile data instead.
About why data is being used at that time, it is very likely that there are some apps that are using background data - you may have disabled this for a bunch of apps, but may have missed some.
Check data usage under settings to see if you can identify the culprit (you can use the sliders to narrow down - though it doesn't seem to let you narrow down to a specific timeframe)

jj14 said:
Only thing that comes to mind is that your wifi connection is being dropped for some reason, and your phone switches to mobile data instead.
About why data is being used at that time, it is very likely that there are some apps that are using background data - you may have disabled this for a bunch of apps, but may have missed some.
Check data usage under settings to see if you can identify the culprit (you can use the sliders to narrow down - though it doesn't seem to let you narrow down to a specific timeframe)
Click to expand...
Click to collapse
Where can setup this prioritization? For example if I want the phone to use mobile data and override Wifi?

megakony said:
Where can setup this prioritization? For example if I want the phone to use mobile data and override Wifi?
Click to expand...
Click to collapse
I may be mistaken, but I don't think you can do that on stock ROM at least. If WiFi is available, it will always try to use WiFi
For whatever reason, if you want to use Mobile data, you will need to turn WiFi off.
If you always want to use mobile data for a given app or want to use mobile data in a specific time range, you could use tasker app to set up a profile to disable WiFi when that app is launched (or in that time range)

jj14 said:
Only thing that comes to mind is that your wifi connection is being dropped for some reason, and your phone switches to mobile data instead.
About why data is being used at that time, it is very likely that there are some apps that are using background data - you may have disabled this for a bunch of apps, but may have missed some.
Check data usage under settings to see if you can identify the culprit (you can use the sliders to narrow down - though it doesn't seem to let you narrow down to a specific timeframe)
Click to expand...
Click to collapse
Thanks. I did check last night to see what apps were using the most data and it was by far feedly but I'm not sure why that would be using data when I'm not awake. Does anyone else have that problem with feedly? Isn't it also strange that it keeps happening at roughly the same times every day?
Also wanted to add that I came from a Galaxy S2 running Cyanogen and never had this issue.

jj14 said:
I may be mistaken, but I don't think you can do that on stock ROM at least. If WiFi is available, it will always try to use WiFi
For whatever reason, if you want to use Mobile data, you will need to turn WiFi off.
If you always want to use mobile data for a given app or want to use mobile data in a specific time range, you could use tasker app to set up a profile to disable WiFi when that app is launched (or in that time range)
Click to expand...
Click to collapse
I just checked my gf's Galaxy Young...in there when you go to WIFI and access Advanced and there you can set Wifi Sleep policy.
The options I got are "When screen turns off", "Never when plugged in" and "Never"...not really the options I'd imagine for this =)

danotoriusodo said:
Thanks. I did check last night to see what apps were using the most data and it was by far feedly but I'm not sure why that would be using data when I'm not awake. Does anyone else have that problem with feedly? Isn't it also strange that it keeps happening at roughly the same times every day?
Also wanted to add that I came from a Galaxy S2 running Cyanogen and never had this issue.
Click to expand...
Click to collapse
Did you check settings on your feedly? It sounds like it does a daily sync which some RSS readers I'd imagine would do.
I don't have feedly on my phone, but if it has some decent settings it should have one to sync only via wifi or similar.

xShadoWxDrifTx said:
Did you check settings on your feedly? It sounds like it does a daily sync which some RSS readers I'd imagine would do.
I don't have feedly on my phone, but if it has some decent settings it should have one to sync only via wifi or similar.
Click to expand...
Click to collapse
Yea I checked the feedly settings section and there isn't anything related to sync. The app actually only refreshes when it's opened. For now I went into the "data usage" section on my phone and selected "Restrict background data" for the app. Hopefully that works.

danotoriusodo said:
Yea I checked the feedly settings section and there isn't anything related to sync. The app actually only refreshes when it's opened. For now I went into the "data usage" section on my phone and selected "Restrict background data" for the app. Hopefully that works.
Click to expand...
Click to collapse
It actually gets even crazier. Last night before I went to bed I turned off my mobile data by going to setting>data usage and it still shows at 5:19 AM that I used 43 MB of data. I mean the only explanation I could think of is I'm sleep walking and using my phone lol. I called T-Mobile and it definitely shows on their end I did use the data at that time. They also couldn't help me because they don't have the phone yet. Can't believe that no one else is having this problem. Guess I have to contact Google which should be really useful smh.

Wifi always on

Hello fellow Z3 owners,
I have had my Z3 for 3 days, and today I found something alarming: the Wifi seems to always be on, even when I manually turn it off from the System Settings.
It appears turned off from the settings, but using an app such as WIfi Analyser, I can see the networks around me, and I don't have any error message saying I have to turn WIfi on.
While using WIfi Analyser, I can go back to the settings page, and see that the wifi really appears to be off.
Does anyone have an explanation? Could anyone try to reproduce this?
Cheers,
JPascal.

jpascal said:
Hello fellow Z3 owners,
I have had my Z3 for 3 days, and today I found something alarming: the Wifi seems to always be on, even when I manually turn it off from the System Settings.
It appears turned off from the settings, but using an app such as WIfi Analyser, I can see the networks around me, and I don't have any error message saying I have to turn WIfi on.
While using WIfi Analyser, I can go back to the settings page, and see that the wifi really appears to be off.
Does anyone have an explanation? Could anyone try to reproduce this?
Cheers,
JPascal.
Click to expand...
Click to collapse
in android JB or Kitkat(IDR which) google added the feature for the wifi to "always scan" even when its off. i recreated your problem on my z3 and the exact same thing happened. go into your wifi menu, hit the soft key for options.. click advanced and then uncheck "wifi scanning always on" or whatever it says. this should also save you some battery.

Thanks for the solution! I found that as well, I still think there is a privacy issue. IMO this should be disabled by default.
Thanks for sharing, cheers,
JPascal.

During the setup process, the user is asked if they want this service to run in background and I always say no.

jpascal said:
Thanks for the solution! I found that as well, I still think there is a privacy issue. IMO this should be disabled by default.
Click to expand...
Click to collapse
Uh...what privacy issue?

poldie said:
Uh...what privacy issue?
Click to expand...
Click to collapse
That's actually a very good question. I am not a Wifi specialist, and when I saw that Wifi Analyser could see WIfi networks while my phone was saying the wifi is off, I assumed the WIfi was actually on all the time.
If I understand correctly, it's only turned on to scan surrounding Wifi networks. If it means your phone only listens, and does not speak with surrounding networks, then it should remain undetected, and we do not have any privacy issue. But if scanning means talking with surrounding networks, then it means these networks could potentially know you're around, right? Please understand that this is a question, not a conclusion.
Cheers,
JPascal.

jpascal said:
That's actually a very good question. I am not a Wifi specialist, and when I saw that Wifi Analyser could see WIfi networks while my phone was saying the wifi is off, I assumed the WIfi was actually on all the time.
If I understand correctly, it's only turned on to scan surrounding Wifi networks. If it means your phone only listens, and does not speak with surrounding networks, then it should remain undetected, and we do not have any privacy issue. But if scanning means talking with surrounding networks, then it means these networks could potentially know you're around, right? Please understand that this is a question, not a conclusion.
Click to expand...
Click to collapse
Sure, it's always good to consider security. Without going through the code it's not possible to know, but I'd imagine it's passively listening, if all it's doing is seeing which base stations are in the area. Were it to be actively probing then it should only be giving your MAC address away, which is not normally considered a threat. I turn it off to save battery, because otherwise wifi is on all the time!

poldie said:
Sure, it's always good to consider security. Without going through the code it's not possible to know, but I'd imagine it's passively listening, if all it's doing is seeing which base stations are in the area. Were it to be actively probing then it should only be giving your MAC address away, which is not normally considered a threat. I turn it off to save battery, because otherwise wifi is on all the time!
Click to expand...
Click to collapse
I did turn it off as well

When coming home, phone does only connect to wifi after the screen has turned on

Hi,
I am on C432B170. Whenever I change locations (physically), the phone only connects to the available (and already saved) wifi after I turn the screen on. It then keeps connection indefinitely. I also double checked, it is set to keep the connection always.
Or am I too impatient (it even happens after being within wifi range for 15 minutes)? What is the scan interval when the screen is off? Is there maybe a way to decrease that interval?
Thank you in advance

cn0MMnb said:
Or am I too impatient (it even happens after being within wifi range for 15 minutes)? What is the scan interval when the screen is off? Is there maybe a way to decrease that interval?
Click to expand...
Click to collapse
My Mate 8 connects immediately after I enter home while keeping the phone in my pocket without turning the screen on.
So there must definitely be a problem in your settings, or maybe a problem in your wireless router configuration.
If possible check your Mate 8 behavior with another wifi network.

In fact, it happens also at work. and my Mate S (with Android 5) connected immediately.
Do you have wifi+ enabled or disabled?

cn0MMnb said:
Do you have wifi+ enabled or disabled?
Click to expand...
Click to collapse
Not enabled, it might creates problems keeping the phone always on mobile data connection instead of switching to wifi..

themissionimpossible said:
Not enabled, it might creates problems keeping the phone always on mobile data connection instead of switching to wifi..
Click to expand...
Click to collapse
I have it disabled aswell.

How are you sure that wifi connection is not active?
Only because you can't see the wifi symbol on the status bar as soon as you turn the screen on (it might be due only to a delay in the screen refresh), or have you checked otherwise?

themissionimpossible said:
How are you sure that wifi connection is not active?
Only because you can't see the wifi symbol on the status bar as soon as you turn the screen on (it might be due only to a delay in the screen refresh), or have you checked otherwise?
Click to expand...
Click to collapse
I checked the dhcp log in the router and it also matches the time of when I activated the display

What battery saving plan are you using?
And check advanced wifi settings: always active on standby is enabled?

themissionimpossible said:
What battery saving plan are you using?
And check advanced wifi settings: always active on standby is enabled?
Click to expand...
Click to collapse
Performance
Always active (as stated in initial post) (Battery history also shows that WIFI was on permanently)

Well, other possibilities are to delete the wifi connection and recreate it (if not already tried), and eventually perform a Mate 8 factory reset.

themissionimpossible said:
Well, other possibilities are to delete the wifi connection and recreate it (if not already tried), and eventually perform a Mate 8 factory reset.
Click to expand...
Click to collapse
also known as "I got no idea, try this standard thingy". I already resetted the phone - without any third party apps I noticed the exact same bahavior

Unfortunately, if you can't solve the problem in any way, probably your Mate 8 is somehow faulty in the wifi compartment, and need to be sent to Huawei for repair...

themissionimpossible said:
Unfortunately, if you can't solve the problem in any way, probably your Mate 8 is somehow faulty in the wifi compartment, and need to be sent to Huawei for repair...
Click to expand...
Click to collapse
That's like saying: "If notifications are delayed, you need to send it to huawei for repair"
If wifi works fine otherwise, it must be a software problem.

Edit: found a discussion on google productforums:
https://productforums.google.com/forum/#!topic/nexus/3y35TOBjznc;context-place=topicsearchin/nexus/category$3Anexus-6p|sort:relevance|spell:false
Chances are, it's an android 6.0 issue. Too bad, Huawei didn't update to 6.0.1

cn0MMnb said:
Chances are, it's an android 6.0 issue. Too bad, Huawei didn't update to 6.0.1
Click to expand...
Click to collapse
I honestly don't think so, AFAIK till now nobody here (and on the other forums I attend) has posted a similar problem with the Mate 8, so IMHO it shouldn't t be a Huawei Android 6.0 problem.
But anyway, this XDA thread now might be read by some other people who could possibly confirm the same problem, so you'll see if you're not alone...

I do have same problem on KanVIP Slim on a AL10. The wifi wont connect until i open the screen nor at home or at work, did test it with WIFI+ enabled or disabled.
Also i have noticed that the login webpage wont show when i'm connected to a public free WIFI that require web login.
Waiting for the new 172 version of the ROM to see if any improvements.

DANDANA said:
I do have same problem on KanVIP Slim on a AL10. The wifi wont connect until i open the screen nor at home or at work, did test it with WIFI+ enabled or disabled.
Also i have noticed that the login webpage wont show when i'm connected to a public free WIFI that require web login.
Waiting for the new 172 version of the ROM to see if any improvements.
Click to expand...
Click to collapse
What Android version does your KanVIP run? 6.0 or 6.0.1?

cn0MMnb said:
What Android version does your KanVIP run? 6.0 or 6.0.1?
Click to expand...
Click to collapse
Should i say KangVIP, its on 6.0 Chinese base 168

I have the same problem.. from C432B103 till B170.. only when I unlock the screen after a few second I get a sign that wifi was founded and connected.. so I think that phone is on 4G when it sleeps.. thats no good((

DANDANA said:
I do have same problem on KanVIP Slim on a AL10. The wifi wont connect until i open the screen nor at home or at work, did test it with WIFI+ enabled or disabled.
Also i have noticed that the login webpage wont show when i'm connected to a public free WIFI that require web login.
Waiting for the new 172 version of the ROM to see if any improvements.
Click to expand...
Click to collapse
Same problem
Any solution ?

How to delete saved wifi connection?

On my S5, all saved wifi connections were visible in the wifi settings page. On the S7, it seems that only the connections within range are visible. If you go into the data usage / restrict networks, every saved wifi connection is displayed, but there is no way to delete them from there. It seems that there is no way to delete a saved wifi connection once it goes out of range. Anyone know how to do this?

bimmerdriver said:
...On the S7, it seems that only the connections within range are visible. I...
Click to expand...
Click to collapse
Exactly the same issue here. Anyone got any workarounds (non-root)? Third party apps don't seem to work. Pretty ridiculous that you can't forget a saved network and causes a serious issue for me: I have to change my password at work and can't forget the WiFi AP before getting to the office so I'm locked out of my work account...

It is a bit annoying but I can't see how it's a problem?
How are you locked out of your work account?
You can change password when you are in range.
What's the other issue?

jarayn said:
It is a bit annoying but I can't see how it's a problem?
How are you locked out of your work account?
You can change password when you are in range.
What's the other issue?
Click to expand...
Click to collapse
The problematic are Hotel / Airport / etc. Hotspots...
When i received my S7 i "load" an backup from my old android phone... I few days earlier i returned from a long holiday trip and so the "restore-backup" created a lot of hotspots an my S7 i never never need and i'm not able to delete ....
(OK - i can start for a second trip, visit all places and delete hotspot when connected... ) <-- ironic

jarayn said:
It is a bit annoying but I can't see how it's a problem?
How are you locked out of your work account?...
Click to expand...
Click to collapse
We use exchange authentication for WiFi at work. The phone automatically tries to connect using the old password as soon as i'm near the office. Does this three times and locks my ability to use the WiFi. This is before i have chance to see it and forget it in the WiFi settings. Such a simple omission in the UX makes this even an more annoying issue.

Yeah OK the work thing sounds a bit troublesome. I would turn off wifi before I go then turn it on when I'm ready and forget the network before it connects.
...
The holiday wifi hotspot thing i don't get still.
Why is that a problem? You can't see the networks anyway. Is it just an ocd thing?

well you have a drastic option, if nothing else works
go settings>backup and reset>reset network settings
this will erase all your wifi, as well as all bluetooth and data connections saved
Sent from my SM-G930F using XDA-Developers mobile app
---------- Post added at 04:16 PM ---------- Previous post was at 04:10 PM ----------
wegiwegi said:
well you have a drastic option, if nothing else works
go settings>backup and reset>reset network settings
this will erase all your wifi, as well as all bluetooth and data connections saved
Sent from my SM-G930F using XDA-Developers mobile app
Click to expand...
Click to collapse
just done that myself, all my connections disappeared, it works fine, you should try that
Sent from my SM-G930F using XDA-Developers mobile app

The problem with the holiday Hotspots is at least not a real problem... But I don't like this.
I would prefer a function to delete Hotspots even when I'm not connected to them...
(maybe it is small security issue, because a common SSID can be used to connect with my phone...)

Wifi Manager - choose Known network, then remove.

I reported this to Samsung support. That's the only way to get them to fix it. The more people report it, the more likely they are to fix it sooner.
As for whether it's a "problem", I suppose it's not immediately a show stopper. However, after only a couple of weeks, I accumulated a lot of hotspots that clutter up the restrict networks page. Who knows, if too many build up it could cause an problem. There is no reason for Samsung to have implemented it in this way. I've never seen a device (mobile or pc) that did this.

lost_ said:
Wifi Manager - choose Known network, then remove.
Click to expand...
Click to collapse
Thanks, but Android 6 only allows you to forget those networks that you've connected to using the same app. So you can only forget those that you connected to with WiFi Manager, not the in-built settings.

do7slash said:
Thanks, but Android 6 only allows you to forget those networks that you've connected to using the same app. So you can only forget those that you connected to with WiFi Manager, not the in-built settings.
Click to expand...
Click to collapse
Edit: you're correct. I think root and find where file or db that stores the SSID would be the next option.
Edit 2: Get a root editor, backup /data/misc/wifi/wpa_supplicant.conf, then edit it to either remove the entire SSID entry, or set autojoin to 0. There may be root apps that does this.
The plain text passwords are also stored in that supplicant file.
I don't think there is any non-root solution until Samsung changes the Wifi settings to show out-of-range SSIDs. I agree that it is silly for it to not do have this feature at all.

2 solutions so far (?)
Hi,
if you have a non rooted S7 there is no build in possibility to delete the saved wifi connections if you are out of range. Samsung has to fix this in my opinion.
With Marshmallow you can only delete wifi networks with the same app you created them, so third party apps like wifi manager do not work. So far there might be two solutions which work, both are far away from being perfect.
- First solution is to delete ALL network connections...and start from the beginning (1. Go to settings -> 2. Bakup and reset -> 3. Reset network settings -> 4. Follow on screen instructions)...including bluetooth etc.
- Second solution is not fine either. Take a third party app like wifi manager from Kostya on play store and list all known networks. Then set up a (fake) wifi access point with the SSID you want to delete. Once they are in range, you can delete the saved wifi connection. You have to repeat this for every SSID you want to delete.
Best regards,
Alexander

jarayn said:
Yeah OK the work thing sounds a bit troublesome. I would turn off wifi before I go then turn it on when I'm ready and forget the network before it connects.
...
The holiday wifi hotspot thing i don't get still.
Why is that a problem? You can't see the networks anyway. Is it just an ocd thing?
Click to expand...
Click to collapse
Ummm..... maybe cuz stored WiFi networks spew out a wealth of valuable information!!
isc.sans.edu/forums/diary/WiFi+Still+Remains+a+Good+Attack+Vector/21583

lost_ said:
Wifi Manager - choose Known network, then remove.
Click to expand...
Click to collapse
can not remove!

I updated my S7 today (with Sprint) to Android 7, and they fixed this. Out-of-range WiFi networks are listed under the "Manage Networks" options and can be removed from there.

Chrome saying no Internet though working and Android Downloader Not downloading unless Wifi ! [SOLVED]

Hi!
I am in a trouble. My mobile data works very fine. And wifi too. But, when I use mobile data, chrome says "No Internet" on the upper layer. [See attached pics] Though everything is working. I can surf every website. When I connect the wifi, it says "Back online". This issue not making problem to me. But I have an online class app called "10 minute School", there If I download videos it works on wifi normally. But whenever I try to download using mobile data the downloads are paused. Never starts. That's the problem. [See attachment]
And I am facing no internet issue in any other app in my phone.
I think my android saying no internet to chrome & download manager. But everything is working. Why? How do I check it? whats the problem here....Plz help me out. My wifi is too slow. 3 mbps. So I need Mobile data. [See the attachment and see after changing the network what happens]
Plzzzz Help!!

@lightinfo10
Have you check your mobile data usages limiter? Mostly in Network Settings

khusika said:
@lightinfo10
Have you check your mobile data usages limiter? Mostly in Network Settings
Click to expand...
Click to collapse
Data Monitor: off
Set Data plan: Disabled
Data Saver: off
In Settings App, That's what I know.

Hey! I recently noticed another app named "My robi" says No Internet Connection. But the app is doing online tasks very fine by mobile data. It always shows a Network Error Message. See the attachment .
Now I'm really confused. I get the same message by my both sim of different operators.

lightinfo10 said:
Hey! I recently noticed another app named "My robi" says No Internet Connection. But the app is doing online tasks very fine by mobile data. It always shows a Network Error Message. See the attachment .
Now I'm really confused. I get the same message by my both sim of different operators.
Click to expand...
Click to collapse
Those apps probably read your cache instead of using online data, have you check your APN?

Chrome is one of those apps.
I use the APN which my mobile operator provides via SMS Configurations. Other phones in my home uses the same operator and same APN. But they don't encounter any issue.
Can I check it via ADB or logcat or whatever....?
I think, Factory Reset is the only option. But I have Bank apps. Factory Reset changes Device id. So I will be in trouble.
Thanks!

Are you using a VPN or private DNS service?
lightinfo10 said:
I have an online class app called "10 minute School", there If I download videos it works on wifi normally. But whenever I try to download using mobile data the downloads are paused. Never starts.
Click to expand...
Click to collapse
Check your app settings. It could be configured to download only on WiFi.
lightinfo10 said:
I think, Factory Reset is the only option. But I have Bank apps. Factory Reset changes Device id. So I will be in trouble.
Click to expand...
Click to collapse
Why will factory reset change device ID? You'll only have to login again on your banking apps. I don't see any trouble here.

I did a Factory Reset. And it worked magically!! Everything fine now!! Thanks to everyone.