Tips on Using Beam with Wireless Router.

Hi Everyone, I am a newbie here and also very new to routers.I have bought a Netgear JWNR200 wireless router and called up the netgear customer care for set up.He guided me well and i was able to connect to the internet wireless.But the main problem is when i switch off my laptop and start again to use the Wireless, it shows me Limited access.Doesn't open any page. I connect the Lan cable from the router and it connects properly.Then I am able to use the Wireless.SO guys please share some tips on using Wireless with Beam without having to connect the LAN everytime I want to use Wireless.Thanks,Sudheer.