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
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

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WinVNC Authentication Error

Should you have problems with the MS-Logon plugin? Here is the place to look for help or report issues
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creos21
Posts: 1
Joined: 2006-12-05 19:17

WinVNC Authentication Error

Post by creos21 »

I am installing UltraVNC version 1.0.1 on about 150 computers. Most of them work just fine, MS Login II appears to be working. On maybe 1 in 20 computers though, during startup of UltraVNC server, they'll get an error:

"No password has been set & this machine has been preconfigured to prevent users from setting their own. You must contact a System Administrator to configure WinNVC properly."

No one will be able to connect to these PC's using UltraVNC viewer until the VNC password in the Authentication section of the VNC server is manually reset.

Even when I set the password multiple times, it won't save and UltraVNC will give this error. It doesn't seem to matter who's logged on to the machine and we have UltraVNC being run as a system app (loads before login) so I'm thinking this must have something to do with the actual PC. Any thoughts?
Last edited by creos21 on 2006-12-06 14:16, edited 2 times in total.
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cruisin427
Posts: 1
Joined: 2007-01-08 17:37

Re: WinVNC Authentication Error

Post by cruisin427 »

I think that I found an answer in another post. I was having the same problem and it was driving me crazy. Hopefully this fixes it!! The link follows:

[topic=8929][/topic]
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