Server is Not Operational

Acrive Directory with Server 2003 is not accessable.  I'm getting the error message :  Server is not operational.  Need Help ASAP!  Thank You in Advance.
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Computer101Connect With a Mentor Commented:
PAQed with points refunded (500)

EE Admin
Brian PiercePhotographerCommented:
What is generating the error?
As a general rule check DNS. The DC should point to itself for its preferred DNS server, other machines should point at the DC as the preferred DNS server.

General tips at

Please provide more information Event IDs etc
JonFioravanAuthor Commented:
It took the 'Repair' option from the Windows server 2003 CD
to 'fix' the problem.  
follow this:
1. Click Start, click Run, type regedit in the Open box, and then click OK.  
2. Locate and then click the following subkey:

3. On the Edit menu, point to New, click DWORD Value, and then type MaxUserPort.
4. Double-click MaxUserPort, and then set a decimal value to a number greater than 5000.

Note This value controls the maximum dynamic port number. The valid range for this value is 5000-65534. By default, the number of available ports is 3977 because the first available port is 1024.
5. Quit Registry Editor.
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