Mod Ex6470

[Sappa]

Bo jour je n arrive pas à connecter la WiFi sur le routeur

[plemans]

Did you set it up using the push button WPS option? 

If so, factory reset the extender  and set it up using the installation assistant.

To factory reset, push and hold the reset button for 7-15 seconds while powered on. 

Here's a video of how to use the assistant. 

https://www.youtube.com/watch?v=yJVklshxBMk