Wireless connection blocked

I have wireless connection that I use, am using right now, on my laptop.  I recently obtained an ipod touch,2nd gen.  It works great.  Internet loaded without any problem at the coffee shop.  I bring it home and find my wireless connection.  I select it,enter my password and see my network.  I cannot load any internet pages.  I have tried to contact ISP, to no avail and much frustration.  I have tried to disable Norton firewall and virus and it still doesn't work.  It really acts as though there is something blocking the access to the web in the ipod from my connection.  I reset my modem and my router and still nothing.  Help please.