I think you are a little confused between the types of wireless a/b/g/n and the frequencies they operate on.
N will work on 2.4 or 5 Ghz spectrum, but b and g will only work on the 2.4
Specifically tho, you need adaptors that can work on the 5 Ghz, and the channels that it employs, in order to use it, which will render any wireless devices on the 2.4 GHz spectrum useless unless you have a router which broadcasts in both.
Anyways, regardless of all that, give your shub a specific channel, I do this for customers around 30 times a day, it works.