Alrite man. I had the exact same problem. Contacted Sony about it and was given no help. They advised me that is was a router problem so i contacted belkin who told me i needed to contact sony. Useless.

I decided to ring belkin again and was put through to one of their senior technical support managers. They helped me sort out the problem and it was a lot simpler than i thought. I too could not access hotmail or msn as they are secure sites and all these sites are inaccessible due to the problem.

Go to your belkin homepage and select connection type on the menu on the left side of the page. I originally had PPPoE but was told to change this to PPPoA. Follow the wizard and enter your isp details. Try to access hotmail as a test to see if it worked.

This is how my problem was solved but it may be different for you.
Let me know if it works