Since I updated to JB I've had two major problems. The first is my email doesn't work when connected to WiFi. I use both hotmail and gmail and neither of them get any emails until I go from WiFi to 4G LTE. Other problem is also with WiFi. Often when I am connected to WiFi anywhere work, home, school or anywhere else this happens. I will be on the internet and when I go to a new page I get a Proxy Authentication error. Any help would be great. I am on Verizon btw.