Same problem here; PineAP shows loads of fake APs but none of them accept clients/has internet.
In logfile I do see many probe requests with an occasional attempt to associate but nothing more.
When I try to manualy connect to one of the fake APs I do get connected but without internet.
My setup is basic:
wlan0|Pineapple --- eth0 --- laptop|wifi --- router
The pineapple can be accessed by the laptop and shows the outside IP.
Laptop: Windows 7, no firewall. Offcourse wifi shared and ethernet configured as 172.16.42.42/255.255.255.0
Maybe someone can give me a hint where to problem lies or where to find the next step...