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

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

Unknown Authentication Scheme

Should you have problems with the MS-Logon Plugin? Here is the place to look for help or report issues
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DeltaR7
Posts: 1
Joined: 2006-11-30 23:11

Unknown Authentication Scheme

Post by DeltaR7 »

Since we've upgraded tot 1.0.2, all the machines (servers) where I've activated the MS logon mode, I receive the message in subject: "Unknown Authentication Scheme"
Any idea what the cause might be. Never had this problem in 1.0.1 with the exact same settings.
Greetz,
DeltaR7
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santonoff
8
8
Posts: 11
Joined: 2005-07-13 14:01

Re: Unknown Authentication Scheme

Post by santonoff »

Did you ever receive any help with this? I'm having the problem with one of my machines: a laptop running XP with the firewall turned off. All the settings in uVNC seem correct. I'm thinking of uninstalling and re-installing, just to see if something got lost.
-------------
Steve Antonoff
AIM: scantonoff
steve @ antonoff.net
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redge
1000
1000
Posts: 6797
Joined: 2004-07-03 17:05
Location: Switzerland - Geneva

Re: Unknown Authentication Scheme

Post by redge »

UltraVNC viewer 1.02 required for connect andbefore upgrade to UltraVNC server 1.02

and

maybe a simple restart computer would be enough.
Last edited by redge on 2007-01-12 18:52, edited 1 time in total.
UltraVNC 1.0.9.6.1 (built 20110518)
Windows OS: XP Home + Vista Business + 7 Home
Only experienced user, not developer
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