My Note 4 connects to and works fine with my home wifi. Every other wifi connection (school, other homes, businesses, etc.) it shows it has a connection (wifi symbol turns on) but there's no internet. I believe this started happening after installing Lollipop. Before it used to connect no matter where the connection came from (after initially logging in through a website, if required). I'm looking under the wifi options but they seem to be minimal so I'm not sure how to troubleshoot this issue.