why does my wifi keep shutting off on my phone?

[BellaBear1996]

my galaxy s4 recently started cutting off the wifi whenever i turn my screen off, or it wont automatically turn back on when I turn it back on. it does this for my wifi and my s.o's wifi, whereas they usually automatically connect. phone hasnt suffered damage of any sort and is still brand new. any idea what might be causing this?

 

[B. Diddy]

Welcome to Android Central! Go to Settings>Wi-fi, tap Menu>Advanced, and make sure the setting for Keep Wi-fi On While Asleep is turned on. Also, are there any power-saving modes turned on?