Windows 10: How can I restore the wifi tab so I can reconnect to the home wifi?

My laptop says that there's no wifi connection. When I go to connect I notice that the wifi settings tab is missing.

:)

 

Anomalous WiFi Reconnection

Wondering what (if anything) this was about: WiFi disconnected on wife's computer.

1. Checked, WiFi itself working.
2. Ran Network Trouble Shooter, which usually fixes such problems; failed.
3. Ran Hardware Trouble Shooter, nothing found.
4. Checked Wireless Card in Device Manager; indicated as working properly.
5. Restarted computer; still no WiFi.
6. Although Notification icon was black, clicked on it to see if anything there, found that the WiFi network was "Secured." Clicked on that, saw that it was set to connect automatically, clicked on that, failed. Tried once more, failed, so deselected automatic connection, clicked again, and WiFi was reconnect instantaneously.

I think that that covers most, if not all of the steps I took to fix the problem. Any idea as to what caused this, and as to why non-automatic reconnect worked without even asking for the router's password?

 

Wifi reconnecting issues

My wifi sometimes randomly disconnects even though I set it to automatically reconnect. When this happens, the wifi symbol on the task bar shows that I'm still connected to something even though when I open it, I have an option to connect to my router.
It seems to be disconnecting from my usual router and connecting to something not shown on the wifi list.

 

Anomalous WiFi Reconnection

No idea what caused it, I too have once in a blue moon been 'secured' but no internet. Disconnect and reconnect is the usual fix.

As to the password, if you have ever connected successfully in the past and had ticked 'automatically connect' then Windows would have remembered the connection and its password. Go to Settings > Network & Internet > WiFi and click 'Manage known networks' to see the list of stored connections. Click on one and you can 'Forget' it - then you'll be asked for a password next time you connect.