I am unable to access Petfinder.com/admin and GoDaddy email site.

Hmm...  I suggest doing the following to see if any of the below will clear things up... Try one thing at a time, and let us know how it goes.

1: Disable Web Acceleration in the modems advanced pages. (Let us know if you have an HN9000 instead of HT1000/1100.)
Link to advanced page: http://192.168.0.1/cgi-bin/index.cgi?Command=1

2: Flush your DNS records.
http://www.eightforums.com/tutorials/30136-dns-resolver-cache-flush-reset-windows.html

3: Change your computers DNS records to Google instead of Hughesnet
https://developers.google.com/speed/public-dns/docs/using