As you can see from the title I'm having authentication problems.

I've read the forums and trouble shooting guide.

I've tried:

Running as Admin
Offline Authentication Key
Disabling AV & Firewall
Downloading trainer again

None of my authentications work anymore and when the problem began I hadn't changed any of my AV or Firewalls settings between the last successful and the first failed.

Help is appreciated.

Thank you.

Any other suggestions? < Not being sarcastic, rather sincere.

[Edited by Xalek, 10/1/2011 8:06:29 AM]

When I last used it trainer authentication was fine.

The old computer, even after the latest boot up, has performed no AV or firewall updates.

Now however, it has the same trainer authentication problem.

I've already disable my router and modem firewalls.

Could Comcast be blocking outgoing port 80 for anything other than web browsers?

I know you probably still don't have any suggestions, but I'll keep updating this thread as I discover more about this issue.