If all configuration settings are correct and you still can't access the internet from your browser, you may have a DNS issue.

To troubleshoot DNS issues do the following:

Open your command prompt by going to Start, Run and typing command.

Now at the prompt type "Ping 209.123.109.175" (No quotes).

If you get a response you do indeed have a DNS issue. Try it out. If you enter 209.123.109.175 in your browser it will take you to DSLReports.com.

If you get a Request Timed Out, then the issue is not DNS related and may be a problem of some other sort. If this is the case please check your configuration and connections again. If everything seems fine then contact your ISP.