Ever since JB 4.1.2, my wifi is essentially useless. LTE takes a backseat to wifi (I assume) and my wifi is so slow that I end up having to turn off wifi entirely and go with LTE, which can be spotty in places. Is there any fix to this? It connects fine. It just has TERRIBLE reception. I can place my D4 ON my router and it will show 2 bars with a "fair" signal. Really annoying. Thanks for your help.