I thought you could still receive data(internet) when connected to WiFi after switching from 4G. Is there a setting I need to check ?
Either I am misunderstanding the issue here, or you have a WiFi problem, not likely a phone issue...Yes. I was on 4G, switched to WiFi, and lost data connection.
I was at a grocery store this morning that has free WiFi, unsecure of course, and you're not required to log in at a website. It worked fine. I then went to a public library and they too have the same thing, unsecure with no log in to a website required. I connected to the WiFi but had no internet connectivity. When I disconnected from WiFi and back to 4G I had internet again.Either I am misunderstanding the issue here, or you have a WiFi problem, not likely a phone issue...
Can other things like laptops use the same network? Is this a "coffee shop" or other free internet that might require you to open a web page and login or agree to terms of service? Did you try going to your WiFi networks and long press the network and select "Forget" then reconnect to it like a new network?