Hi guys. i was using a router that my ISP provided to me but thei wifi is pretty bad with low range and speed, so i borrowed another one from my cousin, is a brand new linksys e900, but i noticed that when my screen is off, the wifi goes off too, and i can't receive any messages or even connect in whatsapp web. This also happened in my college wifi, i read it was a feature, but i really want to disable this feature. My ISP router does not do this, is always connected, and even 20 minutes later i can connect to whatsapp web just fine, but on the other router, 5 seconds later and i can't receive messages or connect in whatsapp web. Is there a fix for this or a setting in the router?