... as soon as I enter a user name and password, it freezes. Won't let me hit "enter" to log in. Management ports are not responding, guest OS's are not responding.
It did this once last week after 1yr+ of being online, but it happened twice today already (Christmas, of COURSE)...
I don't see any event logs that even indicate a problem. Where do I start looking? What information is needed to better troubleshoot this issue?