Hi,
I'm a complete beginner, so please bear with me. I have VNC Working from Home to Office No Problem, so am using the same port to accept an SC connection from a recently compiled SC Server.
Compiled OK, I run it, click, and for a millisecond or so I see the balloon which says "Conenction Active; Now visible to the remote PC blah blah". The icon the disappears and that's it.
I have read through a bunch of posts but none describes this error, most have it NOT working ... mine appears to work, for a VERY brief time, but then dumps itself, no error message nix.... It doesn't stay for 5 minutes trying to connect.
I am connecting to my home PC from work, to which I can make a connection using the Viewer from Work, so port forawrds seem to work. I used VNC to check Event Viewer logs on my home PC for errors. Nix. But with the SC Server at Work and the Viewer at home, no dice.
A check of the Firewall Log shows what I described above, every time.
2006-05-24 17:11:36 OPEN-INBOUND TCP (Addresses Deleted)
2006-05-24 17:11:37 CLOSE TCP (Addresses Deleted)
Any ideas? Simple ones?
Ta
Kristian
[EDIT] I think I fixed it. I simply redirected port 5500 to my PC, in my router. I don't know why it didn't work with one of the 5800 or 5900 ports. I "think" it is because the Viewer was listening on the external port, rather than the internal one.
After more 2 000 000 (two million) views on forum for 1.5.0.x development versions... and 1.6.1.0, 1.6.3.0-dev versions
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
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Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome
Help is very needed for:
Windows ARM/ARM64 support: https://forum.uvnc.com/viewtopic.php?t=38163 / https://github.com/ultravnc/UltraVNC/issues/346
macOS support: https://forum.uvnc.com/viewtopic.php?t=38164 / https://github.com/ultravnc/UltraVNC/issues/347
Linux support: https://forum.uvnc.com/viewtopic.php?t=38165 / https://github.com/ultravnc/UltraVNC/issues/348
*BSD support: https://forum.uvnc.com/viewtopic.php?t=38166 / https://github.com/ultravnc/UltraVNC/issues/349
*Solaris support: https://forum.uvnc.com/viewtopic.php?t=38167 / https://github.com/ultravnc/UltraVNC/issues/350
A new stable version, UltraVNC 1.6.4.0 and UltraVNC SC 1.6.4.0 have been released: https://forum.uvnc.com/viewtopic.php?t=38095
Feedback is always welcome
2026-04-01: After 1.7.x, 1.8.x release builds need tests and feedback: https://forum.uvnc.com/viewtopic.php?t=38158
2026-03-11: CVE-2026-3787 and CVE-2026-4962 - Clarification: https://forum.uvnc.com/viewtopic.php?t=38155
2025-12-02: We need help: English Wikipedia UltraVNC page has been requested to deletion: https://forum.uvnc.com/viewtopic.php?t=38127
Any help is welcome to improve the UltraVNC page and/or to comment on the Wikipedia Talk page
2025-05-06: Forum password change request: https://forum.uvnc.com/viewtopic.php?t=38078
2023-09-21: Important: Please update to latest version before to create a reply, a topic or an issue: https://forum.uvnc.com/viewtopic.php?t=37864
Development: UltraVNC development is always here... Any help is welcome
Feedback is welcome
Help is very needed for:
Windows ARM/ARM64 support: https://forum.uvnc.com/viewtopic.php?t=38163 / https://github.com/ultravnc/UltraVNC/issues/346
macOS support: https://forum.uvnc.com/viewtopic.php?t=38164 / https://github.com/ultravnc/UltraVNC/issues/347
Linux support: https://forum.uvnc.com/viewtopic.php?t=38165 / https://github.com/ultravnc/UltraVNC/issues/348
*BSD support: https://forum.uvnc.com/viewtopic.php?t=38166 / https://github.com/ultravnc/UltraVNC/issues/349
*Solaris support: https://forum.uvnc.com/viewtopic.php?t=38167 / https://github.com/ultravnc/UltraVNC/issues/350
SC Server SAYS it connects but disappears i.e. No Icon?
SC Server SAYS it connects but disappears i.e. No Icon?
Last edited by jksmurf on 2006-05-24 13:16, edited 2 times in total.
5500 = SC outgoing ---> vnc viewer listening 5500I don't know why it didn't work with one of the 5800 or 5900 ports. I "think" it is because the Viewer was listening on the external port, rather than the internal one.
5500 = vnc server outgoing ---> vnc viewer listening
5900 = vnc server listening <--- vnc viewer outgoing
5800 = vnc server listening <--- http javaviewer outgoing
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, not developer
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, not developer

