Thanks for your post.
Have you tried reset the domain administrator password and log on again? Try to disable all firewalls installed on the server if there are any.
Moreover, please check if the following KB articles helps:
Error message when you try to log on to a Windows Server 2008-based RODC: "There are currently no logon servers available to service the logon request" http://support.microsoft.com/kb/949048/en-us
How to force Kerberos to use TCP instead of UDP in Windows http://support.microsoft.com/kb/244474/en-us
Hope this helps.
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