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RDP- Unable to establish remote session

Posted on 2012-09-19
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Last Modified: 2012-10-01
We have several location all over US, and all connected using route base tunneling (VPN). That being said, we recently merge with another company and we sent them a firewall with the same model, brand, and config.  All traffic on the firewall are running on the default connection.
Workstation config Troubleshooting:
XP Pro.
Remote connection is enable.
RDP port is open
Windows firewall is disabled.
netstat -an. I see the TCP port 3389 is listening.

Any thoughts RDP Error
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Question by:tomfontanilla
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8 Comments
 
LVL 15

Expert Comment

by:Berkson Wein
ID: 38413722
Could the ISP be blocking it either on their equipment on site or network wide?  I'm not sure how they would being that you're using a VPN, but if they control the VPN and not you, they could...
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LVL 17

Expert Comment

by:James H
ID: 38414266
Do you see the connection attempts pass through the firewalls?
Can you install wireshark on the end PC and see if the traffic is reaching the PC.
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Author Comment

by:tomfontanilla
ID: 38415854
weinberk,
Thank you for your response. I been trying to figure this out for the past 3 days. I think you maybe right. I run a DEBUG on the firewall, i can see the connection trying to establish to the workstation, but it looks something is blocking the RDP session.
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Author Comment

by:tomfontanilla
ID: 38415859
Spartan_1337

Thank you for your response. that one of the troubleshooting I did today. I installed the wireshark on the desktop, and connect it directly to one of the port on the firewall. I do not see any issues, I even run TCP from sysinternal. Nothing.
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LVL 15

Expert Comment

by:Berkson Wein
ID: 38417983
Puzzling indeed.

When using wireshark, are you seeing the packets on the desktop?

Could RDP be disabled via group policy? http://support.microsoft.com/kb/306300

Can you RDP from PC at the same location to that XP box?
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LVL 17

Expert Comment

by:James H
ID: 38419300
Do you have IPv6 enabled? If so, can you disable it and try again.
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Accepted Solution

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tomfontanilla earned 0 total points
ID: 38437247
Fixed the issues. It's the port 3389 remove on registry, and replaced it with different port number.

Thank you for all your inputs on this.
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Author Closing Comment

by:tomfontanilla
ID: 38450096
Resolve the issue myself.
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