I've got an odd problem accessing a specific, banking website. I'm reasonably confident this isn't any of the usual reasons a website might be blocked. Here is the troubleshooting/info I have so far:
1) This problem only occurs on one of the tree domains in our forest. If you access the site from other trees in the forest, the site is viewable.
2) The domain which cannot access the site actually is NOT passing through a proxy.
3) I am able to access the site if I log in to the affected user's PCs with my account from a different domain. Thus, the problem isn't with the machines, it's with the users of the affected domains.
4) The site in question is not blocked by group policy; in fact, it is expressly added to trusted sites.
So despite being added to trusted sites and not going through a proxy, the site simply shows "page cannot be displayed" if anyone from the affected domain attempts to log in to this site. If anyone outside that domain tries to log in, the page loads fine. Any ideas, anyone?