iPhone Consuming several MB/s as soon as on WLAN

Discussion in 'iOS 9' started by norsay, Jul 6, 2016.

  1. norsay macrumors newbie

    Joined:
    Nov 22, 2011
    #1
    Hi community

    A friend of mine is spending his vacation abroad and uses a prepaid SIM card in a mobile WLAN device. He's connecting his iPhone 6 (with iOS 9.3.2) through WiFi to the mobile WLAN device.
    As soon as he is connecting to the WLAN device, his iPhone immediately and permanently generates a constant download stream of several Mb/s o_O All automatic download are disabled (App Store, WhatsApp & Co).
    In the meantime he "downloaded" already several 100MB :S Soft-resetting the iPhone did not change anything in it's behavior.

    Anybody else faced such an issue or has some experience he/she could share?

    Any hints are welcome :)
     
  2. M. Gustave macrumors 68000

    M. Gustave

    Joined:
    Jun 6, 2015
    Location:
    Grand Budapest Hotel
    #2
    App updates? It's next to impossible to keep data usage under 500 MB per day unless you go into airplane mode.
     
  3. norsay thread starter macrumors newbie

    Joined:
    Nov 22, 2011
    #3
    As far as he told me, there are no pending app updates and all update mechanism are turned off. So there should be no "magic" happening behind the scene... But thanks four your input :)
     
  4. addamas macrumors 6502

    addamas

    Joined:
    Apr 20, 2016
    #4
    Check podcasts? Maybe that sync each time he get on WiFi?
     
  5. Mlrollin91 macrumors G4

    Mlrollin91

    Joined:
    Nov 20, 2008
    Location:
    Ventura County
    #5
    iCloud backup? iCloud Photo sync? iCloud Drive?
     
  6. gwang73 macrumors 6502a

    gwang73

    Joined:
    Jun 14, 2009
    Location:
    San Francisco Area
    #6
    You can see what app(s) are using cellular data under Settings-->Cellular
    IMG_0055.jpg
     
  7. norsay thread starter macrumors newbie

    Joined:
    Nov 22, 2011
    #7
    Thanks for your hint. Afaik there are no podcasts stored/loaded on the device. But I'll double check to be sure :)
    --- Post Merged, Jul 6, 2016 ---
    Nope, all turned off :( But thx
    --- Post Merged, Jul 6, 2016 ---
    Unfortunately only cellular data usage is shown in this list, but not WLAN data usage ;) But thanks for your hint
     
  8. mrex, Jul 7, 2016
    Last edited: Jul 7, 2016

    mrex macrumors 68020

    mrex

    Joined:
    Jul 16, 2014
    Location:
    europe
    #8
    Any other cloud services or apps like plex app and sync is set on? Having own nas and app related to the nas? For example I have a nas and one of the app use autobackuping in a cellular/Wifi or wifi only network.
     
  9. gwang73 macrumors 6502a

    gwang73

    Joined:
    Jun 14, 2009
    Location:
    San Francisco Area
    #9
    Sorry about that, I missed the part you stated for WLAN and not cellular.

    May you can check the battery status section and see if there's an app that is running a lot of processing time or background processing time?
     
  10. norsay, Jul 7, 2016
    Last edited: Jul 7, 2016

    norsay thread starter macrumors newbie

    Joined:
    Nov 22, 2011
    #10
    There are no other cloud/backup installed I guess. But I'll double check that . Thanks
    --- Post Merged, Jul 7, 2016 ---
    No problem ;) As far as my friend could see, there was no suspicious battery activity visible... But maybe he should check this again after a few days (as WLAN is not consuming that much battery, this could cumulate across time and only be visible after a few days). I'm pretty close to suggest hard resetting the device, but this is not really a satisfying option when you are abroad :confused:
     
  11. norsay, Jul 8, 2016
    Last edited: Jul 8, 2016

    norsay thread starter macrumors newbie

    Joined:
    Nov 22, 2011
    #11
    Thanks for your hints, much appreciated :)

    Here here a short update:
    • After 3 days of excessively downloading whatever content, the iPhone stopped this today without anything changed in the meantime
    • During the 3 days the iPhone downloaded more than 1.3 GB (?!?) over the WLAN hotspot device
    • Moreover a unknown volume has been downloaded over several public WLAN hotspots
    It looks like the issue is solved.... At least for the moment ;)
     

Share This Page