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Unknown data usage early morning

With the changes to the data plans, i decided to look at my wifes data usage on her iphone. What i have found is odd and a bit concerning. Overall her data usage is pretty much nothing, except for something that occurs every morning around 1 or 2 am. I have included data usage on the AT&T account below. As you can see, something happens around 1 or 2 am every morning, i just dont know what it is. The amount of data being transferred is REALLY high if you ask me, as high as 75336KB back on the 17th. I called AT&T support and they said it was the phone updating or mail being downloaded, basically they have no idea. I have the mail set to fetch manually already. Anyway to determine what is going on???

06/04 01:22 AM phone Internet/MEdia Net Sent 3368KB
06/03 01:45 AM phone Internet/MEdia Net Sent 18906KB
06/02 01:45 AM phone Internet/MEdia Net Sent 6878KB
06/01 01:45 AM phone Internet/MEdia Net Sent 9460KB
05/31 07:45 PM phone Internet/MEdia Net Sent 1918KB
05/31 01:27 AM phone Internet/MEdia Net Sent 7551KB
05/30 02:27 PM phone Internet/MEdia Net Sent 1224KB
05/30 01:17 AM phone Internet/MEdia Net Sent 2685KB
05/29 01:39 AM phone Internet/MEdia Net Sent 8120KB
05/28 01:39 PM phone Internet/MEdia Net Sent 5410KB
05/28 01:07 AM phone Internet/MEdia Net Sent 5068KB
05/27 10:42 AM phone Internet/MEdia Net Sent 21778KB
05/27 01:06 AM phone Internet/MEdia Net Sent 10419KB
05/26 09:26 AM phone Internet/MEdia Net Sent 20657KB
05/26 01:50 AM phone Internet/MEdia Net Sent 8467KB
05/25 02:21 PM phone Internet/MEdia Net Sent 18086KB
05/25 01:25 AM phone Internet/MEdia Net Sent 5249KB
05/24 01:25 AM phone Internet/MEdia Net Sent 1012KB
05/23 01:25 AM phone Internet/MEdia Net Sent 12978KB
05/22 01:25 AM phone Internet/MEdia Net Sent 9749KB
05/21 01:41 AM phone Internet/MEdia Net Sent 19166KB
05/20 01:17 AM phone Internet/MEdia Net Sent 23860KB
05/18 11:56 PM phone Internet/MEdia Net Sent 15440KB
05/18 01:06 AM phone Internet/MEdia Net Sent 29900KB
05/17 01:12 AM phone Internet/MEdia Net Sent 75336KB

Posted on Jun 5, 2010 4:56 AM

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Posted on Sep 5, 2011 4:43 AM

User uploaded file

this is from data manager application between 7am and 8am, I was at bath had breakfast and drive. look at the data downloads both from 3g and wifi. It can be some application but after 8 am ıt just stops without any intervention. Any ideas ? (iphone 4)

2,094 replies

Jun 7, 2010 5:41 PM in response to Eddie Strauss

I looked back at all my bills and these middle of the night charges started to show up around 6/18/09 and from all the bills I looked at since then they are there and all the ones before they are not. Also I noticed that prior to that all the data charges seem to be timed for when I actually accessed data (lots of small sized data packets) but more recently it only seems to be in these larger ones in the middle of the night. So, maybe it is just the way AT&T does its accounting of data?

Jun 7, 2010 7:09 PM in response to TosaDeac

I was also wondering if this was some type of data accumulation that was just posted at the end of the day. The only problem is that my wifes phone shows transfers of 20 MB, 30 MB, even 70 MB one night. That is a ridiculous amount of data, especially since all she really does is check email and occasionally read some news or maybe download an app. For our current billing cycle, we are about half over and over 300 MB already.

One of the really frustrating things is that when i called AT&T customer service to help solve this mystery, they basically threw there hands up. We dont have any tools to help diagnose, we dont really know anything about the phones and how they are setup, basically nothing. The lady i talked to said her first guess was either stats being collected by apple or updates to the phone. I feel pretty confident that these aren't the case. Her next suggestion was the setup of the email accounts on the phone. My wife has 2 email accounts and then calendar and contacts setup. The phone has a general setting for either pushing or fetching data, and then an advanced section were you can set individual mail accounts to behave differently. The phone general setting was set to push, her gmail account was set to fetch, and her yahoo account was set to push. Mail contacts and calendar was set to fetch. So what i did was change everything to fetch manually. So, here is the last couple of days of data charge. You will notice that i made this change during the day on the 5th. Look at my data usage on the 3rd and 4th, over 3 MB and 8 MB. Since the change on the 5th, no weird data transfers during the early morning hours. There are a quite a few spread out over the day of the 5th, 6th, and 7th, but they are mostly a few hundred KB, give or take. Another odd thing, before the 5th, most days i had maybe 1 or 2 data transfers, but always this mysterious one around 1 or 2 am. Since i made the change on the 5th, i have a lot more data transfers during the day, they are much, much smaller in size compared to before the 5th, but the mysterious transfers at 1 or 2 am have disappeared. I know, I'm scratching my head also...

06/07 06:13 PM phone Internet/MEdia Net Sent 4KB
06/07 06:07 PM phone Internet/MEdia Net Sent 586KB
06/07 05:39 PM phone Internet/MEdia Net Sent 124KB
06/07 12:04 PM phone Internet/MEdia Net Sent 4KB
06/07 12:02 PM phone Internet/MEdia Net Sent 4KB
06/07 09:29 AM phone Internet/MEdia Net Sent 297KB
06/07 09:19 AM phone Internet/MEdia Net Sent 27KB
06/07 08:19 AM phone Internet/MEdia Net Sent 58KB
06/06 03:53 PM phone Internet/MEdia Net Sent 191KB
06/06 03:45 PM phone Internet/MEdia Net Sent 761KB
06/06 03:18 PM phone Internet/MEdia Net Sent 228KB
06/06 02:58 PM phone Internet/MEdia Net Sent 2256KB
06/06 02:03 PM phone Internet/MEdia Net Sent 47KB
06/06 12:53 PM phone Internet/MEdia Net Sent 893KB
06/06 12:52 PM phone Internet/MEdia Net Sent 26KB
06/06 12:43 PM phone Internet/MEdia Net Sent 956KB
06/06 12:28 PM phone Internet/MEdia Net Sent 552KB
06/06 12:23 PM phone Internet/MEdia Net Sent 1034KB
06/06 10:37 AM phone Internet/MEdia Net Sent 31KB
06/05 12:55 PM phone Internet/MEdia Net Sent 68KB
06/05 12:42 PM phone Internet/MEdia Net Sent 898KB
06/05 12:32 PM phone Internet/MEdia Net Sent 22KB
06/05 12:26 PM phone Internet/MEdia Net Sent 21KB
06/05 12:23 PM phone Internet/MEdia Net Sent 67KB
06/05 11:36 AM phone Internet/MEdia Net Sent 194KB
06/05 11:07 AM phone Internet/MEdia Net Sent 1728KB
06/05 10:51 AM phone Internet/MEdia Net Sent 221KB
06/05 10:43 AM phone Internet/MEdia Net Sent 1319KB
06/05 10:30 AM phone Internet/MEdia Net Sent 7KB
06/05 10:21 AM phone Internet/MEdia Net Sent 129KB
06/05 10:16 AM phone Internet/MEdia Net Sent 102KB
06/05 10:02 AM phone Internet/MEdia Net Sent 1003KB
06/05 09:32 AM phone Internet/MEdia Net Sent 2410KB
06/05 01:22 AM phone Internet/MEdia Net Sent 667KB
06/04 01:22 AM phone Internet/MEdia Net Sent 3368KB
06/03 01:45 AM phone Internet/MEdia Net Sent 18906KB

Jun 7, 2010 7:41 PM in response to Eddie Strauss

That might make sense then since when I went back and looked at my data charges it all seemed to start on June 18, 2010 when I likely upgraded to iPhone Os3 (which had find my iPhone and the need for Push to be enabled). So that must be the issue except I know one of my friends that has the same issue does not use MobileMe like I do...but does have Push enabled for his Yahoo Email account. So "push" must be the cause which is not surprising I guess. It still does not satisfy me though since I am in a WIFI location 80% of my day (work and home) so I still don't see why my usage should be so high.

Jun 8, 2010 8:18 AM in response to Jeff Hallgren

Last night I tried an experiment and the result is astonishing!

I typically have 8 to 12 thousand KB of data output lately at 2 in the morning. I and many others. That is the subject of this thread.

I only had one mail account set to push. Mobileme. I changed that to manual.
I turned off the phone at midnight. I turned it back on again at 6:00 am.

I just checked my data usage on my bill. Get this:

06/07, the night before, I show 7995KB set at 2:47 am.

06/08, last night, I show 83KB at 6:00 am.

Jun 8, 2010 8:30 AM in response to Eddie Strauss

GMTA - I did a similar test. I turned off the phone before going to bed, turned it on around 6:08 AM. I show 5 MB sent at 6:08, none between 2 & 3, the usual time that outgoing data appear. So this shoots down the hypothesis that AT&T is merely accumulating sent data over a prior time period and reports it in the wee hours. If that were the case the data would have still appeared between 2 & 3 AM.

The iPhone is truly phoning "home", wherever home is.

Jun 8, 2010 9:05 AM in response to Shane Davis

I do have MobileMe and have it set to Push (really only for the Find My iPhone feature), but I know my friend with Yahoo has the same problem but I know he has Push enabled as well. So that would seem to suggest it is the Push feature causing this. The few of you that experimented with shutting off Push and shutting off the phone for the night seem to support the idea it is something with Push, but what is getting pushed at 2-3am? I wonder if calling Apple Support would yield a better answer?

@Lawrence...If I recall I did not enable Push until the Find My iPhone feature was released. Do you recall if you have always used Push?

Message was edited by: TosaDeac

Jun 8, 2010 9:11 AM in response to TosaDeac

I'd recommend people with this problem, to file a bug report, and to request in the bug report, for an application or profile that allows to identify what data is being sent.
I have not heard of people outside AT&T having this problem, thus why I think it's AT&T.
(I don't have none of the problems you describe, and I have everything with push (mobile me, gmail, several apps).

If AT&T or someone else is retrieving information from your phones, this is very serious.
If there is a problem with PUSH, it is also very serious.

Jun 8, 2010 9:42 AM in response to cnpeyton

Remember when the original iPhone came out and people were getting phone book sized bills with all the data usage? ATT started consolidating the sessions to make the bills more managable. I looked at my bill and I see the same sessions. In fact, my bill doesn't show many sessions at all even though I'm on 3G throughout the day with mail, web, twitter, etc.

It's probably just ATT billing reporting on various sessions during the day. An easy way to check this would be to turn off the iPhone before midnight, clear the data logger, then turn it back on in the morning. Then before you go to bed the that day, note the data usage during the day. When it that day shows up online, compare. Otherwise you have no idea what is "extra" data and what is data you really used.

Message was edited by: flaminiom

Jun 8, 2010 9:49 AM in response to flaminiom

ahahah, it is really strange no one had yet proposed that. It is so basic and obvious, maybe that's why no one did =)
Anyways, whomever is having the problem, do what flaminiom said. Reset in the morning, check what the consumption is after that.

On a related note, some people said that, when shutting off the phone, data was not billed at those times, so I suppose that it isn't what flaminiom said, but it's a surefire way to make sure if it's AT&T consolidating data at the middle of the night or not...

I say it's that NSA thing....

Unknown data usage early morning

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