One of my branch offices can only use the Standard HTML version to access Zimbra. I can logon to the same account from other locations using Ajax. But I cannot login to their or my or any account using the Ajax version. Browser doesn't matter. Three different PC's, IE and FF both act the same way.
What particular log can I look at to see what might be happening. I don't believe it is a Zimbra problem. But I'm not sure what log to look at to see what is going on.