Wifi automation

For couple weeks I'm trying to find a way automaticly turn on wifi for like a half min, while the screen is off, and then turn it back off. You know, just sync quickly with social media, emails, etc, but still not connect all the time, to save battery. But I can not do it... I tried numerous app from the Play(even bought Tasker...), but non off it works, when I turn off my screen its just wont connect to wifi no matter what. Maybe its related to Stamina mode, but I'm not sure.
Any suggestion how to resolve this?

Please advise: how to implement scheduling through automation

Hi, I have a note 4 lollipop. The Samsung messaging app is great because you can schedule messages to be sent later, I believe Gmail also has this capability though perhaps not yet from the app.

However I communicate with people mostly through telegram, what's app, viber, facebook, etc. None of these offer delayed messages capability.

I was wondering if there was some automation app or combination of apps, that I could use to request the message and time in a dialog then wait until that time and then macro control some app and paste the text there to send.

I'm interested in a non root solution however, root is a good plan B. Although xposed onky works on one device I have, so non xposed is probably preferable.

Does anyone have any ideas or would this not be possible due to security sandbox in type restrictions?

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