1. xMatter's Avatar
    Late last night I received 3 emails from AT&T that I am using a lot of data and then finally went over my data allotment. This is the first time this has happened in 4 years and nothing with my habits have changed.

    I remember years back that there was an iOS bug that would use cellular data even though a person was connected to their wifi network. This is the case here.

    Has anyone experienced this since updating to 8.3?

    I have apparently burned through 1.5 GB of data last night alone, and I know I was connected to wifi.
    05-07-2015 08:16 AM
  2. Bigeric23's Avatar
    I haven't noticed any problem with this on my iPhone 6 Plus, iPhone 6, or iPhone 5s.
    05-07-2015 08:20 AM
  3. Scatabrain's Avatar
    Late last night I received 3 emails from AT&T that I am using a lot of data and then finally went over my data allotment. This is the first time this has happened in 4 years and nothing with my habits have changed.

    I remember years back that there was an iOS bug that would use cellular data even though a person was connected to their wifi network. This is the case here.

    Has anyone experienced this since updating to 8.3?

    I have apparently burned through 1.5 GB of data last night alone, and I know I was connected to wifi.
    I have seen this. A hard reboot solved it for me. If not, drop the wifi connection and re-add it. That should solve it.


    Sent from my iPhone using Tapatalk
    Just_Me_D likes this.
    05-07-2015 08:53 AM
  4. Just_Me_D's Avatar
    In addition to what Scatabrain suggested, I recommend you review the apps that have access to cellular data. It's possible that you have a rogue app/game that's constantly downloading ads.
    05-07-2015 09:14 AM
  5. xMatter's Avatar
    I figured this was just a single issue, but I am hesitant that it will happen again. I watched 2 episodes of Spartacus on Netflix last night and bang... 1.5 GB of data used. I spoke with an AT&T rep just now and she instructed me to turn off cellular data while in a wifi area. I told her that would be a huge pain in the ****.

    Again... I have found several threads across the net about this issue occurring before, but it just stinks that I burned that data and then AT&T purchased another 1 GB on my behalf and I still have 18 days left in this billing cycle.
    05-07-2015 09:15 AM
  6. Scatabrain's Avatar
    I figured this was just a single issue, but I am hesitant that it will happen again. I watched 2 episodes of Spartacus on Netflix last night and bang... 1.5 GB of data used. I spoke with an AT&T rep just now and she instructed me to turn off cellular data while in a wifi area. I told her that would be a huge pain in the ****.

    Again... I have found several threads across the net about this issue occurring before, but it just stinks that I burned that data and then AT&T purchased another 1 GB on my behalf and I still have 18 days left in this billing cycle.
    It hasn't happened to me after the suggested fixed. Somehow the update messed with my wifi saved connection. Making the new connection seems to have solved it completely.

    Another suggestion: do a reset network settings. I think you can get away with not doing it but in the past this sometimes helped to fix problems like this.


    Sent from my iPhone using Tapatalk
    05-07-2015 10:33 AM
  7. SeanHRCC's Avatar
    I'm not finding much online about the newer gen devices having this issue...and nothing online related to iOS 8 (any variant) specifically...but I do know that historically, this has been something people have complained about.

    Turning off data in your wifi area really isn't that "difficult", especially if you want to ensure this issue doesn't continue happening...I mean you're talking a simple pressing of the "On/Off" button in settings. I mean we all have our own definition of what is a "pain in the ***", but I can't imagine simply pressing a button would be THAT inconveniencing, especially with how irritated you seem about the overages.

    I would also make sure that your WiFi network is functioning properly...you may want to reset that equipment as well as your network settings in your iPhone again and see if perhaps you have a dead spot in your house where your network falls to a critical level and your phone is falling back onto cellular...this could be caused by several reasons, including a dying router.

    Other than what has been suggested to you, your only other option is to get with Apple and see about replacement or repair of the device. I think going through the first options before going this route would be a lot more logical though in case the issue isn't related to your device.
    05-07-2015 03:08 PM
  8. Bigeric23's Avatar
    Also, if you're not using the myAT&T app, you might want to give it a try. It allows you to set usage alerts.
    05-07-2015 03:19 PM
  9. Ledsteplin's Avatar
    Keep a check on your data usage in settings. Go to Settings >Cellular >scroll down to reset statistics >Tap to reset. Then keep a watch on it.
    My wifi is connected but I am still using cellular data, what should I do?-imageuploadedbytapatalk1431044575.417817.jpg
    My wifi is connected but I am still using cellular data, what should I do?-imageuploadedbytapatalk1431044647.731083.jpg


    Sent from my ancient but trustworthy iPhone 5. ☮
    05-07-2015 08:24 PM
  10. jmendel33's Avatar
    I had the same issue recently my bill date just ended, but I was jail broken, updated my phone to 8.3 and while I was doing that it said there was an update the the att carrier settings, so I did that as well, now I always go over my 3gb data plan with about 2 days left every month but this time I was almost 5 days out, it added the first gb then 2 days later it said I went over another gb, in two days?? I'm on wifi at home and wifi at work, there are some spotty places at my job where I drop to lte but I've been working there for 13 years and have had an iPhone since the 3GS and I have never encountered this, my iPhone 6 is not new I've had it since October also


    Sent from my iPhone using Tapatalk
    05-07-2015 09:06 PM
  11. gfederline9's Avatar
    I had the same issue recently my bill date just ended, but I was jail broken, updated my phone to 8.3 and while I was doing that it said there was an update the the att carrier settings, so I did that as well, now I always go over my 3gb data plan with about 2 days left every month but this time I was almost 5 days out, it added the first gb then 2 days later it said I went over another gb, in two days?? I'm on wifi at home and wifi at work, there are some spotty places at my job where I drop to lte but I've been working there for 13 years and have had an iPhone since the 3GS and I have never encountered this, my iPhone 6 is not new I've had it since October also


    Sent from my iPhone using Tapatalk

    just Drink less 10 beer or eat less 10 burger or work harder to earn $50 more ,and buy an unlimited data plan
    05-09-2015 08:54 PM
  12. jmendel33's Avatar
    just Drink less 10 beer or eat less 10 burger or work harder to earn $50 more ,and buy an unlimited data plan
    We are in a shared family data plan, and who are you to make that post, talking about my work ethic? Or what I consume each month, that was one of the most ignorant posts I've even seen in this forum, the post was not called help I need $50 extra a month because I can't pay my cellphone bill, if you have nothing constructive to say on the matter then don't waste the keystrokes replying please


    Sent from my iPhone using Tapatalk
    05-10-2015 02:15 PM
  13. Ledsteplin's Avatar
    I had the same issue recently my bill date just ended, but I was jail broken, updated my phone to 8.3 and while I was doing that it said there was an update the the att carrier settings, so I did that as well, now I always go over my 3gb data plan with about 2 days left every month but this time I was almost 5 days out, it added the first gb then 2 days later it said I went over another gb, in two days?? I'm on wifi at home and wifi at work, there are some spotty places at my job where I drop to lte but I've been working there for 13 years and have had an iPhone since the 3GS and I have never encountered this, my iPhone 6 is not new I've had it since October also


    Sent from my iPhone using Tapatalk
    Have you discussed it with AT&T?


    Sent from my ancient but trustworthy iPhone 5. ☮
    05-10-2015 06:40 PM
  14. gfederline9's Avatar
    We are in a shared family data plan, and who are you to make that post, talking about my work ethic? Or what I consume each month, that was one of the most ignorant posts I've even seen in this forum, the post was not called help I need $50 extra a month because I can't pay my cellphone bill, if you have nothing constructive to say on the matter then don't waste the keystrokes replying please


    Sent from my iPhone using Tapatalk
    I m just saying buy unlimited data plan , it worths it
    just say it only cost you 10 less beer a month

    and you can use as much internet as you want
    05-10-2015 07:22 PM
  15. krisd3207's Avatar
    Yes, mine has been doing the same thing. Oddly, looking at my bill I can see it is consistently at midnight, 3AM, 6AM, and 9AM, almost every night. This is when I am at home, my phone is connected to wifi, and I am asleep. I have turned everything off from automatically updating, yet it is still using data...
    04-15-2016 12:14 PM
  16. Ledsteplin's Avatar
    Yes, mine has been doing the same thing. Oddly, looking at my bill I can see it is consistently at midnight, 3AM, 6AM, and 9AM, almost every night. This is when I am at home, my phone is connected to wifi, and I am asleep. I have turned everything off from automatically updating, yet it is still using data...
    Those times are not the actual usage times. Just when they were recorded. There's a 6 or 8 hour window on usage stats. So if I have a spike of .400 gb at 3 am on the bill, it may have taken place 6 hours before at 9:00 pm. I was showing a spike at 1:00 pm of 400 mb. Couldn't figure it out. Verizon told me of the window, and sure enough, at 5:15 pm I recalled doing something that was probably the culprit.
    04-15-2016 03:56 PM
  17. Quick Sipper's Avatar
    I'm not finding much online about the newer gen devices having this issue...and nothing online related to iOS 8 (any variant) specifically...but I do know that historically, this has been something people have complained about.

    Turning off data in your wifi area really isn't that "difficult", especially if you want to ensure this issue doesn't continue happening...I mean you're talking a simple pressing of the "On/Off" button in settings. I mean we all have our own definition of what is a "pain in the ***", but I can't imagine simply pressing a button would be THAT inconveniencing, especially with how irritated you seem about the overages.

    I would also make sure that your WiFi network is functioning properly...you may want to reset that equipment as well as your network settings in your iPhone again and see if perhaps you have a dead spot in your house where your network falls to a critical level and your phone is falling back onto cellular...this could be caused by several reasons, including a dying router.

    Other than what has been suggested to you, your only other option is to get with Apple and see about replacement or repair of the device. I think going through the first options before going this route would be a lot more logical though in case the issue isn't related to your device.
    it's a pain in the *** when you rely in your phone for work... forget to turn "on" cellular data, and miss important emails, iMessages, etc. so YES it's a pain in the ***. also and most importantly, I have turned wifi assist off so it shouldn't be happening period.
    10-29-2016 11:17 AM
  18. Quick Sipper's Avatar
    yes! here's the answer everyone...pay them more money! the solution has been found, let's lock this thread... we're done here.
    10-29-2016 11:20 AM
  19. Thuewy's Avatar
    I'm not finding much online about the newer gen devices having this issue...and nothing online related to iOS 8 (any variant) specifically...but I do know that historically, this has been something people have complained about.

    Turning off data in your wifi area really isn't that "difficult", especially if you want to ensure this issue doesn't continue happening...I mean you're talking a simple pressing of the "On/Off" button in settings. I mean we all have our own definition of what is a "pain in the ***", but I can't imagine simply pressing a button would be THAT inconveniencing, especially with how irritated you seem about the overages.

    I would also make sure that your WiFi network is functioning properly...you may want to reset that equipment as well as your network settings in your iPhone again and see if perhaps you have a dead spot in your house where your network falls to a critical level and your phone is falling back onto cellular...this could be caused by several reasons, including a dying router.

    Other than what has been suggested to you, your only other option is to get with Apple and see about replacement or repair of the device. I think going through the first options before going this route would be a lot more logical though in case the issue isn't related to your device.
    I'm new to the iPhone club and very technically challenged. I got the iPhone 6s Plus a couple of billing cycles ago and this month is the first time I have gone over 2G. I have never used 1G and I haven't changed anything. Do you mind teaching me how to turn the Data off? There are a boatload of apps running on my Data. I guess the new update is to blame. And since I am trying to figure out a new phone plus adjust to the update, I'm sure operator error is involved. Thank you
    12-11-2016 12:20 AM
  20. Rob Phillips's Avatar
    I'm new to the iPhone club and very technically challenged. I got the iPhone 6s Plus a couple of billing cycles ago and this month is the first time I have gone over 2G. I have never used 1G and I haven't changed anything. Do you mind teaching me how to turn the Data off? There are a boatload of apps running on my Data. I guess the new update is to blame. And since I am trying to figure out a new phone plus adjust to the update, I'm sure operator error is involved. Thank you
    Welcome to iMore! You can turn cellular data off for individual apps in Settings > Cellular. Make sure you're connected to wifi whenever possible and turn off Wi-Fi Assist in Settings > Cellular (all the way at the bottom).

    At the end of the day, iPhones generally use a lot of data. You may want to consider upping your data plan a bit.
    12-11-2016 12:26 AM
  21. khcass's Avatar
    I actually am having the same problem. You see, I have an iPhone 6 Plus, and it may not be the newest, but it sure aint broke. I'll be connected to wifi, but 50 times a day I'll get "You've used 50%...75%...100% of your data tier and will be charged for the blah blah blah." I do have U.S. Cellular and I don't want to pay more than I have to.
    01-13-2017 01:38 PM
  22. alc1575's Avatar
    I actually am having the same problem. You see, I have an iPhone 6 Plus, and it may not be the newest, but it sure aint broke. I'll be connected to wifi, but 50 times a day I'll get "You've used 50%...75%...100% of your data tier and will be charged for the blah blah blah." I do have U.S. Cellular and I don't want to pay more than I have to.
    Go into settings under cellular, tap on it and scroll to the bottom to make sure "wifi assist" is toggled off. This will keep you on wifi only until you choose to turn cellular or assist back on.
    01-13-2017 08:36 PM
  23. Speedygi's Avatar
    Welcome to iMore! You can turn cellular data off for individual apps in Settings > Cellular. Make sure you're connected to wifi whenever possible and turn off Wi-Fi Assist in Settings > Cellular (all the way at the bottom).

    At the end of the day, iPhones generally use a lot of data. You may want to consider upping your data plan a bit.
    Yup just disable cellular data
    01-14-2017 08:06 AM
  24. Psws123's Avatar
    My daughter has had the iPhone 5c for 2yrs and never had a data overage issue. She received the SE for Christmas and the past two months she has went over her data by an extra 2gb each month! With having 2gb already within 8 days of the billing cycle she has already reached 100% usage and just got a message today that she has 15 days left and has now gone over 2gb! Total BS!!! She has zero apps running on cellular except messages. She only uses the phone for games and stuff when she is on wifi. (Or so the phone says she is on wifi but someone still goes over data!!! I will be taking this SE to Apple and getting the issue resolved or it will be turned in for something else, as this is a total POS since AT&T won't do anything to fix it. And yes the wifi assist is off. It has to be an issue with wifi.
    02-11-2017 02:34 AM
  25. Tartarus's Avatar
    My daughter has had the iPhone 5c for 2yrs and never had a data overage issue. She received the SE for Christmas and the past two months she has went over her data by an extra 2gb each month! With having 2gb already within 8 days of the billing cycle she has already reached 100% usage and just got a message today that she has 15 days left and has now gone over 2gb! Total BS!!! She has zero apps running on cellular except messages. She only uses the phone for games and stuff when she is on wifi. (Or so the phone says she is on wifi but someone still goes over data!!! I will be taking this SE to Apple and getting the issue resolved or it will be turned in for something else, as this is a total POS since AT&T won't do anything to fix it. And yes the wifi assist is off. It has to be an issue with wifi.
    Did you go to Settings > Cellular and see which apps are using cellular data?
    Doing so would be the first to see where all that data goes.

    You can also disable cellular data per app there. Just scroll down a bit and toggle data off for apps you want wifi-only.
    02-11-2017 07:46 AM
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