WiFi password on Freebox Pop

Hello there,
if I understood correctly, you've changed the WPA2 key and you can't remember what you put?
connect via Ethernet and set another one then...
for smartphones, you should have a QR code on the display of the box.

Hello

You can check your key:

• on the Free portal: https://subscribe.free.fr/login/

My Freebox > Set up my Wifi network > Wifi network security

• on Freebox OS: http://mafreebox.freebox.fr/

Freebox settings > Wifi > Network configuration

--
What is well conceived is clearly stated,
And the words to say it come easily.
(Boileau)

Yes!! Good day Brupala, and thank you for this prompt reply.
Indeed, I changed the Wi-Fi key that was 12 centimeters long and entered a shorter one.
It's working, I have internet on my computer, but I wanted to install internet on my partner's laptop, the Wi-Fi key does not work. What key did I enter? And how to check?
Connecting via Ethernet, what does that mean?? Do you know the Freebox Pop?