I'm having similar problems as some other posts, but i'm starting a new thread bec no one seems to mention the solution to the problem.
I've got a PC, windows XP, and I use earthlink dial-up or else I use the wireless connection at school. Regardless of what mode I use to get onto the internet (mozilla/firefox, internet explorer, netscape...), i can't get into websites such as my online banking, emails, etc. It looks like it is mostly secure sites, but for some reason I can access yahoo.com.
I've contacted earthlink about this, but none of their millions of suggestions work. I've gone thru the knowledgebase in windows update, and nothing works. I even uninstalled earthlink software and tried to only use my wireless connection without earthlink - still nothing. I've run a bunch of different spyware and antivirus tests and they have found nothing.
I'm running out of things to try. I even spoke to earthlink directly, but they were really not helpful at all. I originally thought it was the ISP until i uninstalled earthlink and i was still getting the same problem. I even asked them if they have had other complaints, but they claim to not be aware of this problem. I even created new user profiles on my computer to see if my user profile was corrupt. still no luck. I know nothing is wrong with these secure sites because I can access them from my work computer just fine and that's a PC, windows XP, Internet explorer, but we are using a cable modem here.
Anyone who successfully solved this problem - please help!
Also, there was mention of port 443 needing to be open to access secure sites. can someone please explain what that means? How can i test to see if my port 443 on my computer is open or not?