I am attempting to update my wireless network from 802.11g to 802.11n. When connected to the 'G' access point, the client laptops (there are 7 running Windows XP) are able to connect and browse the network for each other. When I connect them to the 'N' access point they can see the access point, but not the rest of the network. I tried swapping out the access point with a wireless router, but this did not change anything.

I verified in both the AP and the router that isolation was turned off. Searching the web has not turned up any other ideas. The manuals don't show anything either.

Why can't my wireless client nodes see each other on the 'N' network?