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Remote Desktop Connection: Sometimes it works, sometimes it doesn't

Hi,

I have a PC and a laptop at home sharing as DSL connecting using a wired router. I also have a work computer. All of these machines are setup to accept remote desktop connections (RDC).

RDC works from any of my home PC's to the other one, and from any of my home PC's to my work PC. IT doesn't work from my work PC to any of my PC's!

What could be the problem?

Thanks,
Samir
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samir_tartir
Asked:
samir_tartir
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1 Solution
 
Expert4XPCommented:
Is port 3389 opened on your home router?  And, your home pc should have a fixed IP address, because it could change behind the router. also, are you sure your wan IP address from home stays the same?
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samir_tartirAuthor Commented:
Using a "netstat -an" command, port 3389 is listening, is this at the router? I think that the IP addresses are fixed.
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Rob WilliamsCommented:
netstat -an shows the computer is "listening" ready for a connection but not the router.
To test if port forwarding is configured on the router, log onto the computer you want to connect TO from the office, and go to http://www.canyouseeme.org  and test for port 3389 to see if the port is open.
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Expert4XPCommented:
But is 3389 being forwarded to a specific pc?  Look in your router setup forwarding rules.
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Rob WilliamsCommented:
You also mentioned you have more than on computer at home. Get one working first, but once successful, if you want to connect to more than one computer you will have to change the default listening port on the other computers. The following links explain how to do that:
http://www.petri.co.il/change_terminal_server_listening_port.htm
http://support.microsoft.com/default.aspx?scid=kb;en-us;306759
Then once you have them changed you will have to change the router for multiple connections so for example the router's port forwarding would be configured as such:
port 3389 => 192.168.1.101
port 3390 => 192.168.1.102
port 3391 => 192.168.1.103
When connecting from the office you would also have to specify the port in the remote desktop connection window  <ip address>:<port #>  such as 66.66.123.123:3391
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Rob WilliamsCommented:
Thanks samir_tartir,
--Rob
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