Help I can't access certain websites!?

[Masa]

I was in China a month ago, and as you might know, a lot of websites are blocked there. So I used Goagent to access Youtube and such. It worked fine, but when I returned to New Zealand, I found that I can't access all the websites that were blocked in China!

At first it was only Chrome that has problems accessing these websites, but since two days ago even Internet Explorer started having problems (it had worked fine before).

Has anyone else encountered this sort of problems? How do you fix it?

Thanks!
I've disabled firewall, still not working!

[Best]

your windows firewall or anti virus is protecting you from web virus .

you can disable this settings ,

step 1 : Start

step 2 : Control panel

step 3 : Windows Firewall

step 4 : Off ( not recommended )