Blank app created with Xcode 7 running on iOS 9 has indefinite trickle of network traffic that keeps the device wi-fi radio on continuously

Originator:dlreese
Number:rdar://22896686 Date Originated:29-Sep-2015 09:07 AM
Status:Open Resolved:
Product:iOS Product Version:9.0
Classification:Serious Bug Reproducible:Always
 
Summary:

All apps running on iOS 9 seem to include a slow trickle of background network traffic (to IP addresses owned by Apple, Akamai and SoftLayer) that cause the wi-fi radio in the device to remain active continuously.

Steps to Reproduce:

1. New project with Xcode 7
2. “Energy Diagnostics” instrument on a device w/iOS 9
3. Never ending trickle of network traffic
4. Still going even when app is in the background and screen is dark

Expected Results:

No background network traffic. The wi-fi radio turns off.

Actual Results:

A few packets every few seconds. The wi-fi radio turns on.

Notes:

Tested on iPhone 4S with iOS 9.0.

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