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IOS10 Wifi profile issues

hazy2k16's picture
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has anyone come across wifi issues with managed devices?

Some of our users have recently updated ipads to IOS10 and from then on cant connect to wifi even though they still have the wifi profiles installed which are pushed out from MDM.

How iOS decides which wireless network to auto-join

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Source: http://support.apple.com/kb/HT5965

iOS follows these guidelines when deciding which wireless network to auto-join.

iOS defines two categories of networks: hotspot and private.

  • A hotspot network can be an HS2.0/Passpoint (802.11u) network, a "captive" network, or an EAP-SIM network. iOS distinguishes between captive / EAP-SIM and HS2.0/Passpoint hotspots.
  • A private network is any network that is not a hotspot.

When iOS evaluates SSIDs to auto-join, it prefers known networks, higher levels of security, and stronger relative signal strength (RSSI).

iOS will try to connect to networks in this order:

  1. The private network it has most recently previously joined
  2. Connect to a private network
  3. Connect to a hotspot network

If iOS finds more than one network, it will evaluate SSIDs by security level and choose one based on the following order:

  1. Private network: EAP
  2. Private network: WPA
  3. Private network: WEP
  4. Private network: Unsecure/open
  5. Hotspot network: HS2.0/Passpoint
  6. Hotspot network: EAP
  7. Hotspot network: WPA
  8. Hotspot network: WEP
  9. Hotspot network: Unsecure/open

If iOS finds multiple networks of identical type and security level, it will choose the SSID with the stronger RSSI.

Auto-joining after a restart

After a restart, iOS Wi-Fi credentials are available only after a device is unlocked.

If an iOS 6 device is restarted near both open and secure networks, the device will auto-join the open network because the secure network credentials are not available until the device is unlocked.

After restarting, iOS 7 will not auto-join an open network first because it waits until after the device is unlocked.

Last Modified: Nov 20, 2013

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