@d0ugmac1
Thank you for your answer.
By default, when i connected the P9 to my Fritzbox, I had Ip Adresses provided by the Fritzbox for the devices connected by cable and Ip Adresses provided by the 3 P9 for the wifi.
I had trouble when to make them "talk" together... I was for example not able to connect my NAS (cable) with my laptop (Wifi).
That s why i change the mode of the P9 to "Point d'accès" so that I keep the same SSID provided by the P9 everywhere, Ip adresses from the the DHCP of the Fritzbox and It s working fine. I cannot use the parental control and other tools from the P9 but it s not really a problem.
With the EAP110-Outdoor, is there that kind of option ? keeping the same SSID ? Would the Ip adresses provided by the Fritzbox or the EAP110 ?
Maybe the EAP110 is not the device I need to extend my network outside ?
Thx,
R.D.