Wi-Fi Assist

Discussion in 'iOS 9' started by brdmsd, Jan 11, 2016.

  1. brdmsd

    brdmsd Member
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    Can someone explain to me what this does. I had to exchange a defective IPhone 6 Plus at my local Apple Store. While there the Apple employee set up my basic IPhone settings. Unfortunately, the iPhone set up with Wi-Fi assist "on". The next day my phone used 13gb of data in 3 hrs resulting in excess data charged to my AT&T account.. I normally use about 3gb a month. What happened?.
     
  2. Rafagon

    Rafagon Genius
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    It's quite simple. It uses cellular data when your Wi-Fi connection is too poor to be usable.

    Apple's support document goes into greater detail: https://support.apple.com/en-us/HT205296

    If you weren't actively using your phone during the three hours during which all that cellular data was used, something has gone awfully awry, as "Wi-Fi Assist only works when you have apps running in the foreground and doesn't activate with background downloading of content."

    Go to Settings > Cellular and scroll down to where it says "USE CELLULAR DATA FOR:" and below that you should see which of your apps used up all that cellular data. You will probably want to turn off cellular data for that app from now on.
     
    #2 Rafagon, Jan 11, 2016
    Last edited: Jan 11, 2016
  3. Rafagon

    Rafagon Genius
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    If you've had a suboptimal experience with Wi-Fi Assist, such as too much cellular data used while suffering from a poor Wi-Fi connection, you'll soon be able to tell exactly how much cellular data was used as a result of Wi-Fi Assist kicking in.

    iOS 9.3 will show this figure in Settings > Cellular:

    wifiassistnewios9datafeature-400x208.jpg

    (Photo courtesy Today's iPhone)
     
  4. Ledsteplin

    Ledsteplin Genius
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    Wifi Assist should be OFF by default. But Apple thinks otherwise. SMH
     
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