Tried the standard 1st things? Reboot device / or do a hard reboot
Reset network settings?
Those would be the 2 first things I would try.
Also, if this is a home wifi connection, try turning your router off, wait a few seconds and turn it back on.
Well, it says E so it probably isn't. One easy way to tell is to do a speedtest with the speedtest.net app. It shows if it's testing cellular or WiFi speeds and you'll also be able to see if the results are consistent with your WiFi or if they are really slow like Edge.
Do are speedtest and then look here and see if it shows the WiFi symbol.
Unless the wifi symbol is replacing the "E" at the top of the screen, you aren't connected PROPERLY.
Obviously it shows you connected if it has a check mark next to it, but you aren't using it, which indicates a problem.
To the right of your wifi connection click the blue arrow icon to see what your IP address is. Being that its a home network, your address should start with 192.168... If it starts with 169, then your router is not giving out an IP address.
It depends on your router and how it's configured. At my house, I have everything restricted to only authorized MAC addresses. Everyone else -even if the have the password- won't be able to go anywhere or do anything.