Samsung WIFI hotspot shows on but no signals when phone screen is off

[Android Central Question]

Samsung Grand Prome Plus wifi hotspot works fine when mobile screen is ON but when I turn the screen off the hotspot stops. And when I again ON the screen the Hotspot icon on mobile shows ON but hotspot not throwing signals then I have to restart mobile hotspot again and keep the mobile screen ON for hours.

further, in settings, wifi and hotspot is always ON even during sleep.

please suggest some solution.

 

[B. Diddy]

Welcome to Android Central! Any power-saving modes turned on?