Is there a Fix for the Wifi issue without rooting my S3?

[Jayhall2502]

Got a new S3 with T-Mobile back on the 11th of this month. Notice the wifi would be spotty at times. I've read a good amount about this issue and tried most of the more common fixes ppl said to use in threads I've read but hasn't really helped me out too much. The main problem is that my phone will show a very strong connection to the wifi at home and will work fine for the 1st minute or so. But after about the 5-7 page I try to go to it stops loading. When I refresh sometimes it'll finish loading quickly or not at all. Seeing if anybody here has some more suggestions that's worked for them....