I've done Speedtest and it says my iPad wifi runs at full speed(13mbps). But streaming videos, no matter the source, is always slow, downloading anything from Dropbox takes forever, and even downloading a 13mb app from the app store takes 10 minutes. When I am on 3G it loads faster and more consistently than on my home wifi. All my other devices work fine. I can't find a solution to this anywhere online. Can somebody help?