I just recently trying upgrading the computers in my network from UltraVNC 1.0.8.2 to 1.2.0.1 and some of them work fine but others that we use to connect over a VPN have been connecting after password is entered and then it acts like it is about to connect but then just disconnects and closes the UltraVNC window.
I did install this version by using a patch management software to deploy the needed files and ran a batch file to silently install the UltraVNC after also using a batch file to run the uninstall executable that was found within the UltraVNC folder.
Any clue why it would act like is connects but then disconnect right away?
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
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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
2025-12-05: Celebrating the 23th anniversary of the UltraVNC (26th anniversary since the laying of the foundation stone): https://forum.uvnc.com/viewtopic.php?t=38130
2025-12-03: Could you please complete our poll/survey? Renaming UltraVNC files and service to be more clear: https://forum.uvnc.com/viewtopic.php?t=38128
There was a problem to vote, it is solved now! Thanks in advance!
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
Join us on social networks and share our announcements:
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Connects then disconnects right away
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Rudi De Vos
- Admin & Developer
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Re: Connects then disconnects right away
Does server and viewer have the same version?
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Re: Connects then disconnects right away
Also just to let you know I downgraded the computers that I mainly use viewer on to 1.0.8.2 and it connects fine now with the server 1.2.0.1
Re: Connects then disconnects right away
Interesting. I have the same issue using version 1.2.1.
Re: Connects then disconnects right away
I also have the same problem on viewer 1.2.1.6
It connects, accepts the password and then gives error:
Server closed connection
-Manual closed
-Network disconn
This sites connection worked fine for some time, now does not work.
As far as I know there were no firewalls or changes etc.
It did it on a previous version, so I upgraded to 1.2.1.6, but it is still the same.
It connects, accepts the password and then gives error:
Server closed connection
-Manual closed
-Network disconn
This sites connection worked fine for some time, now does not work.
As far as I know there were no firewalls or changes etc.
It did it on a previous version, so I upgraded to 1.2.1.6, but it is still the same.