Quote:
Originally Posted by chaley
Check if there is an Android setting to keep WiFi on during sleep. I don't have an Android 4.1 device, but in Android 4.3 the setting is in Android Settings / WiFi / Advanced WiFi / Keep WiFi on ... . The Advanced Settings are under the three dots.
There is also (possibly) a setting for WiFi Optimization. I have no idea what it does, but you can try turning it off to see what happens.
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Keep Wi-Fi on during sleep is set to
Always.
No setting for optimization.