Also the extender keep telling me to long In a password I don’t remember adding any password

  @Solex1 

 

Hi,

 

Normally the two extenders should have automatically reconnected to the router after you restored the previously used Wi-Fi network names (SSID) and Wi-Fi passwords on the router. 

 

Anyway, if you want to log into the extenders, but don't remember the login passwords, then you need to reset the extenders by pressing the small, recessed "Reset" buttons for about 5 seconds.