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Remote Desktop Connection to SBS2003 has stopped working

Posted on 2013-06-13
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Last Modified: 2014-02-09
For several years I have been able to use RDC to connect to our SBS2003 from inside or outside of our network. Suddenly this has stopped working. i am not able to connect to the server from inside the network (I haven't tried externally yet, but I wouldn't expect it to work). I can connect to a different server on our network from the same (XP) client. I've also tried to connect to the SBS from a different (Win7) client and it has the same problem.

The error is:
'This computer can't connect to the remote computer. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator.'

Some months ago I changed the listening port, but I reconfigured the firewall/router and it has been working fine since then, until this morning.

Any help would be great.

Cheers,
Greg
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Question by:gregmiller4it
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Expert Comment

by:GCFP
ID: 39246579
could you please give me the following screenshot form the SBS2003 machine.

 1) netstat -an
 2) telnet localhost 3389 (From the same host SBS2003)
 3) telnet SBS2003 Machine IP 3389 example telnet 192.168.1.100 3389 (From the remote host, which one you are using to connect RDP).

Cheers,
Gobi.
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Expert Comment

by:Larry Struckmeyer MVP
ID: 39246587
Also run the SBS BPA and fix any thing it finds.  Run the CEICW, and also from the server console rclick "computer" then on the remote tab be sure that the system allows for remote connecions.
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Author Comment

by:gregmiller4it
ID: 39246643
GCFP,
I've done as requested and attached the printout of the netstat command.
Both the Telnet commands opened a session (when I used the custom port). When running the Telnet command from the XP client, It only worked every second attempt. On the first attempt it would drop straight back to the command prompt. The second attempt would open the telnet session.
On the server it opened the telnet session each time.
On both machines, the telnet session failed to connect if i used the default port (3389).
netstat.txt
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Expert Comment

by:GCFP
ID: 39246709
Hi,

You already changed you RDP default port 3389 to some other port (seems like 33899), how did you try to connect the remote machine form MSTSC console. did you put the ip address only or IP address with the port number? please see the attached snap shot. can i have a team viewer remote session to your system? if that is possible then contact me through gobinath.pro@gmail.com

cheers
GObi.
IP.JPG
IP-with-PORT-number.JPG
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Accepted Solution

by:
gregmiller4it earned 0 total points
ID: 39834377
Well, I hadn't been able to use RDP to connect to our server for ages and the other day I tried again and it connected!
I have no idea what changed; there would have been at least a couple of restarts in between times, but I had tried restarting previously to no avail. There would have also been a numebr of Windows updates and other software installations.
So it has fixede itself and I have no idea why.
Thnaks guys for your help anyway.
Cheers,
Greg
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Author Closing Comment

by:gregmiller4it
ID: 39845148
The problem fixed itself!
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