WinVnc Issue cannot connect

The environment I work in has some 2k machines, some xp machines, some of which are part of our domain others are not. We do not use dhcp, and there are 3 different subnets to keep public , staff, and management computers separate. I cannot seem to connect using winvnc to computers or servers that are on a different subnet but i can ping, and access shared folders from them. I haven't tried using vnc on computers on my current subnet becuase the computers are always in use.

Windows firewalls are off and it should work, what am I doing wrong?
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nicolausjAsked:
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top_rungCommented:
Just curious, can you use MS's traditional RDP to connect?

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nicolausjAuthor Commented:
RDP?
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top_rungCommented:
Sorry, Remote Desktop (protocol).  Microsoft's built-in remote administration tool.

http://technet2.microsoft.com/windowsserver/en/library/a175573a-bb3d-4752-a412-8db391535a891033.mspx?mfr=true



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nicolausjAuthor Commented:
It's on but I don't want to do remote desktop, I want remote assistance so I don't kick users off when they ask for support. Both remote desktop, and remote assistance have been turned on on the computers I have tested with. Non work, but on computers within my subnet I am able to \\computername\c$ to drop files on their computer. It is really odd.
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nicolausjAuthor Commented:
Since the environment was set up without dhcp, Do you think wins could solve the problem?
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top_rungCommented:
You are running DNS aren't you?
Can you telnet to port 5800 or 5900 from one machine to the other?
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nicolausjAuthor Commented:
DNS was set up on this network but i cannot seem to telnet using port 5800 or 5900.
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top_rungCommented:
No successful telnet  on 5800 0r 5900 indicates that a device is not allowing the traffic (router or firewall) or the VNC server (trarget machine) is not listening for it on those ports.

Make sure the VNC server is running (by default it will listen on those ports) on the target, and verify windows firewall is off or preferrably exceptions are made for VNC on both sides.  Look in the firewall settings and you should have VNC server and/or vncviewer (or something along those lines) under the Exceptions tab.

 If you have routers inbetween, you will need to port forward the traffic.  You can use this site to figure that out.  Scroll down when you get there and click on the device you are using for instructions...

http://www.portforward.com/english/applications/port_forwarding/VNC/VNCindex.htm

Hope this helps.

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nicolausjAuthor Commented:
The problem seemed to be that any of the computer I was trying to connect to were not actually part of the domain. I have tested adding a new computer and both remote assistance, and vnc work. I had thought only a handful of computers weren't part of the domain.  Thanks for the ideas.
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top_rungCommented:
"The problem seemed to be that any of the computer I was trying to connect to were not actually part of the domain."

Machines that were not in your domain was mentioned in your original question.  I am trying to understand what you did to make it work that wasn't suggested here.  Thanks for the input!
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