Can connect to server by remote viewer

[mudshark]

CAN connect to connect to server using the viewer from any PC on my LAN & using the IP address. (So PC firewall must not be issue?)
CAN connect to connect to server using a browser from anywhere, on or off the LAN, using the URL.
CANNOT connect to connect to server using the viewer while off LAN and using the URL.
Do I need another port opened? Presently 5500, 5800, & 5900 are open.

[mod=494,1303649659]moved from 108 to General help[/mod]

[redge]

CANNOT connect to connect to server using the viewer while off LAN and using the URL.

This part not clear for me.

Do I need another port opened? Presently 5500, 5800, & 5900 are open.

No

[mudshark]

CANNOT connect to connect to server using the viewer while off LAN and using the URL.

This part not clear for me.

If I am not on my LAN (so am outside the NAT & cannot use IP to address host) I must address the server by URL such as myname.dyndns.org:12345. So, using the viewer off-LAN and addressing the server by URL fails while on the same off-LAN PC using any browser I CAN connect to the server. Viewer errors as such: Status says "negotiating protocol version" then fails with an "end of stream" message. I do not think it is a (Windows7) firewall issue because I CAN connect from any other on-LAN PC.

[redge]

I do not think it is a (Windows7) firewall issue because I CAN connect from any other on-LAN PC.

yes, possible windows 7 firewall issue,
it can work inside and can fail outside, reason:

there two mode of windows 7 firewall ,
public (outside of your home or outside office like cybercafe/hotel or any place)
or
private (office or home network)
check firewall again in the two mode.

[mudshark]

Not the firewall, I turned it altogether OFF and same symptoms, no difference. I have no other firewall on the PC.

[redge]

sorry, out of idea

your test is it done from outside of your network
or
did you try reach your external host from inside your network
this test can fail sometime, related to some router won't allow loopback connection.

[mudshark]

To use the URL (rather than the IP) from inside the LAN (from a pc other than the server) fails too.

[B]

Calling it a "URL" is a bit confusing. Those are for browsers (and I know you've used the browser-based Java viewer).

You're just giving an Internet host name and port to the VNC viewer application.

It should work. But you may need to use two colons.

Try starting VNC Viewer and entering myname.dyndns.org::5900

[mudshark]

Calling it a "URL" is a bit confusing. Those are for browsers...
You're just giving an Internet host name and port to the VNC viewer application. It should work. But you may need to use two colons. Try starting VNC Viewer and entering myname.dyndns.org::5900

Same thing, still not working even w/ 2 ::.

[B]

Please see my reply in the other thread; are you still including the "http://" part? If so, stop.