Key (s) combination Activate WLAN function?

Ha
1

I have a big problem. My Sony Vaio SVE1713Q1EB no longer recognizes the WLAN. It must be due to a key or key combination that I accidentally pressed. But I don't know and I haven't found any help either on YouTube or anywhere else. Unfortunately, the user manual can't be found. Does anyone know the key combination or has an explanatory picture of the keyboard or can otherwise explain exactly how I reactivate the WLAN? It has to be on the laptop, the roommates' devices have WLAN and are running. Please only provide targeted answers and no general places…

mi

Press the Fn key on your keyboard and then additionally the key with the Wi-Fi symbol on it… Mostly in the top row with the F keys