iPhone 5S uses cellular data even when connected to WiFi
I switched to AT&T Mobile Share plan on 10/19/2013 with 3 lines on my account (2 iPhone 5S and 1 iPhone 5).
I've never been more concerned about my cellular data usage until I gave up my Sprint unlimited data plan. I have reason to believe that I there are cellular data usage on my iPhone 5S during the block of hours that I am definitely certain that my phone is connected to home wifi.
Below are some of the "weird" Internet/mobile web usage:
This is an 8-hour block of time when the phone was technically sleeping BUT most definitely connected to wifi
10/21/2013 08:48AM Internet/mobile web 15.0 KBs
10/21/2013 07:48AM Internet/mobile web 1.0 KBs
10/21/2013 06:48AM Internet/mobile web 1.0 KBs
10/21/2013 05:48AM Internet/mobile web 1.0 KBs
10/21/2013 04:48AM Internet/mobile web 1.0 KBs
10/21/2013 03:48AM Internet/mobile web 1.0 KBs
10/21/2013 02:48AM Internet/mobile web 1.0 KBs
10/21/2013 01:48AM Internet/mobile web 2.0 KBs
10/21/2013 12:48AM Internet/mobile web 1.0 KBs
This is again a huge block of time that I am sleeping and my phone doesn't have any push notifications activated. Most definitely, the phone is connected over wifi as we never switch off our home wifi
10/22/2013 09:03AM Internet/mobile web 118.0 KBs
10/22/2013 07:03AM Internet/mobile web 2.0 KBs
10/22/2013 06:03AM Internet/mobile web 8.0 KBs
10/22/2013 05:03AM Internet/mobile web 2.0 KBs
10/22/2013 03:03AM Internet/mobile web 3.0 KBs
10/22/2013 02:03AM Internet/mobile web 2.0 KBs
10/22/2013 01:03AM Internet/mobile web 2.0 KBs
10/22/2013 12:03AM Internet/mobile web 4.0 KBs
10/22/2013 12:03AM Internet/mobile web 1.0 KBs
Last night, I was at home at 7:00PM and connected to wifi immediately. But then there are still cellular data usage:
10/22/2013 10:39PM Internet/mobile web 5.0 KBs
10/22/2013 08:39PM Internet/mobile web 3.0 KBs
10/22/2013 07:39PM Internet/mobile web 12.0 KBs
I switched my phone off on 10/23/2013 between 12midnight and 7:00AM to see if there would be any difference on the data usage. Notice that there were no usage for 7 hours.
This is just several hours ago while I am at home and connected to wifi.
10/23/2013 09:34AM Internet/mobile web 15.0 KBs
10/23/2013 08:34AM Internet/mobile web 1.0 KBs
10/23/2013 07:34AM Internet/mobile web 10.0 KBs
Below is an excerpt from my online chat with AT&T representative today when I inquired about these usage
Jen: It is not always recorded in "real time"; that is, our system does a sweep at certain times of the day/evening, so that is why you may see times when you know you did not use data, but it was recorded by the system at that time. Generally it is about a 24-hour delay, but can take up to 2-5 days as well.
Me: these are all the times that the phone is at home connected to wifi... and i am sleeping
Jen: These are just the times of the day/evening that the usage charges are actually being recorded by our system, not the actual time that you used the data. Because it is delayed usage, it will/may not show the real time usage.
Me: how do you explain that today 10/23/2013 i have not left the house.. and connected to wifi. but there are still cellular data usage? what i'm saying is: i am being charge for cellular usage when my phone is connected to wifi
Jen: Well, because the system does not record in real time, so that is past usage.
Unfortunately, I do not have any way to see which data session this was for as well. You can always turn off your cellular data when you are connected to wifi just to make sure. You will still be able to make/receive calls and send/receive texts.
I am posting the issue in this forum because I'm very concerned with these small KBs of cellular data usage. These could add up every day and eventually cause overage. Again, I have 3 iPhones in my account which I haven't reviewed thoroughly yet but have the same issues.
The solution (switch off cellular when you are connected to wifi) doesn't seem to be a solid fix. I am hoping there's a better fix.
is it IOS 7 that is causing these data usage or is this an AT&T billing error?
what if I'm streaming music via iTunes Radio over wifi then suddenly the phone decides to use Cellular Data instead?