winghotspot

I am setting up a wifi hotspot for a hotel. I am getting "Your purchased access is not valid for this hotspot " mesage when I logon to the hotspot via a of the APs. I am getting the splash page, after click the ok button, then getting error message.

Here is the setup:
Hotspot basic Free
4 Buffalo WHR-HP-G54 wieless routers with DD-WRT v24 preSP2 build 14311
1 router connects to the internet, other 3 act as APs and connected the main router via a switch (wired). From the main router, I can connect to the internet via the hotspot (192.168.185.0), either wire or wireless. When I try to connect to internet from of the APs, I am getting the error message "Your purchased access is not valid for this hotspot ". Hotspot is enabled in the APs, and DHCP is off. I am getting the IP addresses from the main router. When the hotspot is turned off in the APs, I still getting the same msg when connected via wifi. However, I can connect to the internet via wire connection (no splash page).

Please help.

Thanks

Wing