AC2200 Tri-Band WiFi Range Extender(EX7700) configuration as access point

[filida]

Hi all, I've an AC2200 Tri-Band WiFi Range Extender(EX7700) and I want to configure it as an access point. I tried two times but after a while the configuration process end asking me to retry. Is there any thing to consider in order to successfully confgure the EX7700 as Access Point?

Thanks

[plemans]

Do you have it connected to the router over a hardwired connection when attempting to set it up in access point mode?