|Can you access other websites?|
Can you ping google.com? If you don't know what ping is go to:
click START >> click RUN >> type CMD, press ENTER >> in the black box type "PING GOOGLE.COM" (without the quotes), then press ENTER if you get a response like this:
Relpy from 184.108.40.206: bytes=32 time=21ms TTL=48 - this means the Internet connection is OK.
If the response will be like this: "could not find the host...." or similar then there is no internet connection.
If the internet connection is working you can:
1. try to reset the web-browser settings (IE) to default and see whether this resolves your problem.
Go to Control Panel >> Internet Options >> Advanced (Tab) >> Reset
2. try using different web browser (Firefox, Google Chrome)
Hope this helps