Expand the 5ghz network with Aexpress

[carambo]

Hello, I have an AExtreme with both 2.4 and 5ghz network. I want to expand the 5ghz only with the Aexpress. In Airport Utility, I choose the name of the 5ghz network I want to expand, so far so good, but then it ask for the frequency channel and only shows the 2.4 frequency board (from 1 to 13), while the frequency channel of the 5ghz is> 36 ! How can we set up the Aexpress to expand this 5ghz network only ?? Thanks

 

[BreakGuy]

First and foremost, is your AirPort Express the 802.11n model? If not, you're out of luck and will need to purchase the aforementioned.

 

[carambo]

Yes it is a new one, both are "n" capable