Starting with Android 6 (Marshmallow) google introduced 'Android Doze' to limit battery use of the installed apps. This can results in timed alarms not being delivered to apps on time. Removing Network Scheduler from the "Optimized Apps" in the Battery Settings. The following steps can be used as a work around (at least for some time):
Open your device's Settings app .
Tap Battery More Battery optimization.
Tap the Down arrow . Choose All Apps.
Unfortunately third party apps cannot enable/disable mobile data at android 5.0 and higher except they have root access. This is a known issue and an intentional change by google.
For android 5 users there are two options to get back the mobile data scheduling functionality. This is only recommended for advanced users:
- Make Network Scheduler a privileged system app. Temporarily root your device and copy the app from /data/app/com.manimahler.android.scheduler3g/ to /system/priv-app and reboot. This pages provides a detailed description, but make sure you copy to /system/priv-app/ rather than /system/app and do not forget the reboot.
- Give Network Scheduler root access. This requires a permanently rooted device to work.
If you do not know what rooting is search the internet and decide for yourself whether this is a good idea or not and how to do it. Users will take all potential risks and accidental damage responsibility by rooting their device.
This is a known issue on Android 4.4.2, especially when you use interval connection. After a few days it is not possible to manually toggle the Wi-Fi sensor and the device must be restarted. Apparently all battery saver apps suffer from this. You can improve your situation with the following setting:
In the device settings go to the advanced Wi-Fi settings and check 'Scanning always available'. This will have some effect on the battery, especially when location service and other apps require a location. On the other hand this might save energy because the alternative is using the GPS sensor which might have an even greater effect on the battery.
Interval Connection never switches off Wi-Fi and Mobile Data if Lock Screen option is 'None' on Android 4.0 and 4.1
If you use the 'None' option in the Lock Screen settings interval connection does not work. The only work-around is using 'Swipe' as your Lock Screen option if you rely on interval connections to save your battery.