Why can't I connect to wifi on my Lumia 520?

[Windows Central Question]

I can't connect wi-fi on my lumia 520

have update 8.1

 

[Laura Knotek]

Re: I can't connect wi-fi on my lumia 520

Was WiFi working before you updated to WP8.1?

Have you tried deleting your WiFi networks and adding them again?

What security settings are these WiFi networks using?

If this is your home WiFi network, what router do you have? Have you tried rebooting your router? Are there any firmware updates for your router?