i cant stay connected to the wifi router its cutting every 2 minutes

i am connected to internet from my calaxy s3 android 4.3 version but i cant have the access to the router setting its protected and i dont have the password i just want to stay connected and my phone cutting the connection every two minutes automatically, is there any soluation so my device stay connected to the router without cutting each two minutes this what i want only.

Welcome to Android Central! Review this guide and see if any of the tips help: http://forums.androidcentral.com/amb...-problems.html. Obviously, a bunch of them won't apply to you since you can't access the router. Is this at work, or is it provided by an apartment complex? Whose router is it?

Try going to Settings>Wi-fi, tap Menu>Advanced, and turn off "Avoid weak connections."