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Unable to RDP

I noticed lately that I am not able to RDP to the server locally.  I just took over as an IT guy/paramedic for a local fire station and they have DYDNS for external connections.  Inside they had to use 123ABC:3389 if they wanted to RDP both inside and outside.  Then one day RDP just stopped working.  I have since reformatted a bunch of machines, moved DHCP from their WNDR4500 to the server 2003 machine.  Hoping I can just RDP to it but I cant however any new machines I have reformatted since can RDP with no issues.  I have done the basics such as ensure RDP is enabled, the user is either an administrator or a remote desktop user etc however still no go.  Any thoughts?
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Commented:
can you RDP using the internal IP address, rather than the name?
James HIT Director

Commented:
Did you try stopping the windows firewall service?

Open a command prompt and type this: netstat -an

See if the server is "listening" on port 3389.

One other thing you can verify is that the server is using the default RDP port.

Click Start --> Run --> type: regedit

Browse to this location:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp\

Look for this REG_DWORD: PortNumber
In the parenthesis is the port, 3389 is the default.

Author

Commented:
Spartan_1337 any idea where else in the registry that would be I do not have a section called currentcontrolset?

Author

Commented:
My apologizes I did find it and moved it back to 3389 however still no luck

Commented:
what is the exact error you are receiving?

Author

Commented:
Remotes Desktop Cant Connect to the Computer for the Following Reasons

1. Remote access to the Server is disabled
2. The Remote Computer is Turned Off
3. The Remote Computer is not available on the network

Make Sure the remote computer is turned on and Remote Desktop is enabled

Author

Commented:
I just noted the Computer has two active network connetions on the same network just a few numbers away.

Commented:
so you can't RDP either internally, nor externally?

Author

Commented:
Correct neither.  But like I said any computer I just rebuilt is ok.  It odd.
IT Director
Commented:
Did you reboot after making the change? it won't take effect until you do.
Also, if you browse back to that registry setting and stop at Terminal Server,
there is another key you need to check:

fdenyTSConnections

Make sure this is set to Zero (0).

You say you have to active connections, what are they for?

Author

Commented:
In talking with the Deputy Chief he stated when they migrated the old server years ago they kept the other connection because it had the same address of the old server.  I just shut off the connection.  I also noticed I cant RDP from the server either to any other workstation.
James HIT Director

Commented:
Can you ping any PC from the server?
Can you ping the gateway IP address?

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