Not having any issues here, loving this phone. I would guess it might have something to do with your in home network? Are you in a congested environment for WiFi and are you connecting to the 2.4 GHz frequency on your WiFi?
Try connecting to the 5GHz frequency if your access point supports that broadcast. If not, double check that your 2.4 GHz network is not broadcasting on the 40 mhz channel, this will have a lot of collision issues, set it to 20 mhz instead. Hope this helps!