WiFi extension doesnt work , tested WPS ON/OFF and button in front

I want to improve WiFi coverage using a Apple Airport Extreme, configured in wifi network extension mode.
Some posts I found on this board speaks about the WPS button, pushing it would allow for WiFi extension, but thats not the case, I tested it.
When enabled in the Hidron Fizz router, WPS will allow Wireless clients to pair with the router ONLY during the flashing circle light happening during a couple minutes after a button push.
When WPS is disabled ( the default setting ) Wireless clients can pair anytime. That means my airport extreme should also be able to pair anytime, it can pair but somehow it is denied permission to extend the network as it reports.
Anyone can help here ?

Answers

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