Wireless connection on vista!!!!!!!!!!!!!!!

Question

i'm using vista,, Hg520s is a Huawei router,, i have manually configured the router,, all lights on the router green.,, able to browse with ethernet cable connected,, i have tried using (open,WEP,WPA) all 3 security modes,, i have removed all preferred networks,, my wireless connection shows it is connected to the router network,, but i cant get the web pages,, ne help will be appeciated!!!!