I was unable to open certain websites like www.uscis.gov in Internet Explorer . I tried to open the website in Mozilla Firefox and I am getting the same problem. When I tried to open this site I am getting message that the page was not found.I am able to open all othe websites. Please help to solve this problem.

Originally Posted by singireddys

I was unable to open certain websites like www.uscis.gov in Internet Explorer . I tried to open the website in Mozilla Firefox and I am getting the same problem. When I tried to open this site I am getting message that the page was not found.I am able to open all othe websites. Please help to solve this problem.

Give WinSock XP Fix a try.