I had this problem with my UK laptop when I got to the US in January - the internet wouldn't work at all, even though I could connect to the wireless.
Quick question: when you manage to connect to the wireless networks, what does it say when you put the mouse over your internet icon in the bottom corner of the screen? If it says 'Currently connected to: Network X. Access: Local only', that means that you actually are not connected to the internet but are just picking up the signal from the router - this is usually the main reason that you cannot load pages. It needs to say 'Access: Local and Internet' in order to load the pages.
For my computer, it turned out that I still had the static IP address from my Bristol Uni department network set up and so it was blocking the wireless signal (the wireless needs to be able to find an IP address automatically each time you connect, but if it is set to a static, permanent one, it won't work).
See if this works (the Verizon tech may have tried this already, but this is what worked for me):
- From the Start menu, go into Control Panel (I'm doing this from the Vista layout)
- Click on Network and Internet
- then click on Network and Sharing Center and then Manage Network Connections (listed in right panel)
- this should come up with a window showing all your internet connections.
- Right-click on the wireless connection icon and go into Properties
- highlight Internet Protocol Version 6 (TCP/IPv6) and click on Properties
- check that it is set to 'Obtain IP address automatically' and 'Obtain DNS server automatically' and make sure that all other fields are blank. Close Properties window.
- now highlight Internet Protocol Version 4 (TCP/IPv4) and do the same for this one - making sure that the 'Obtain IP address/DNS server automatically' boxes are ticked and the 'Use the following IP address/DNS server' boxes are blank.
- If you previously had an IP address/DNS server set up manually, then changing it to obtaining it automatically should hopefully stop your internet problem.
- If not, you may need to try something else.
Hope this helps