system services using large amount of data

Discussion in 'iOS 10' started by thebro20, Oct 20, 2016.

  1. thebro20 macrumors regular

    Joined:
    Sep 7, 2014
    #1
    I hadn't encountered this issue until iOS 10. Ive been getting the notifications that I'm getting near the end of my data cap etc etc

    so I've been resetting my data usage on my phone, this month, system services has used 995 mb. When going into that further, something called DNS services has used 768 mb.

    My question to you all, 1. is that normal? & 2. what is DNS services?
     
  2. tromboneaholic macrumors 65816

    tromboneaholic

    Joined:
    Jun 9, 2004
    Location:
    Clearwater, FL
    #2
    I've been seeing a substantial increase in data usage under iOS 10.
     
  3. deano1972, Oct 20, 2016
    Last edited: Oct 20, 2016

    deano1972 macrumors 6502a

    deano1972

    Joined:
    Sep 16, 2016
    Location:
    United Kingdom
    #3
    768mb? That's not normal at all .. for comparison system services has used 21.1mb and DNS services has used 1008kb in the last 11 days on my iphone 7
     
  4. Thor_1 macrumors 6502a

    Joined:
    Sep 18, 2016
    Location:
    Texas
    #4
    I saw a few threads on this and reset my cellular use 15 days ago. System services used 35.6mb of data since then.
     
  5. thebro20 thread starter macrumors regular

    Joined:
    Sep 7, 2014
    #5
    I wonder if its just a glitch that it says that's what is using the data, or if maybe I need to do a restore
     
  6. jav6454 macrumors P6

    jav6454

    Joined:
    Nov 14, 2007
    Location:
    1 Geostationary Tower Plaza
    #6
    1. Normal can be anything depending on your phone's current usage rates.

    2. DNS services is basically phone book IP Address that the iPhone keeps on hand to call in for an another address. Also has to do with your carrier settings. When you use your browser, the iPhone pings the DNS Server for a request of an IP Address. This data is transmited back to your browser which then loads the appropiate pages.
     
  7. deano1972 macrumors 6502a

    deano1972

    Joined:
    Sep 16, 2016
    Location:
    United Kingdom
    #7
    It should be very small amounts of data though, I would say anything more than a few MB for dns services for every GB of data used is not normal. I would expect to see over 700mb data used by dns services if the op had used half a terabyte of mobile data. Something on his phone is continually requesting dns data in my opinion.

    Perhaps reset network settings and do a hard reboot?
     
  8. thebro20 thread starter macrumors regular

    Joined:
    Sep 7, 2014
    #8
    My data allotment resets on the 26 so ill reset the settings and see what happens
     
  9. ericwn macrumors 65816

    Joined:
    Apr 24, 2016
    #9
    I don't think a forced restart does anything good but reset network settings would be my first try.
     
  10. Phil A. Moderator

    Phil A.

    Staff Member

    Joined:
    Apr 2, 2006
    Location:
    Shropshire, UK
    #10
    I haven't reset my stats for 3 months and DNS services is at 43mb so I'd say it's far from normal!
     

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