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

2025-12-14: 1.7.1.X-dev release builds need tests and feedback: https://forum.uvnc.com/viewtopic.php?t=38134

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

SecureVNC Plugin Authentication Failure

Should you have problems with the DSM plugin? Here is the place to look for help or report issues
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sed255
Posts: 1
Joined: 2023-08-22 21:41

SecureVNC Plugin Authentication Failure

Post by sed255 »

We upgraded our computer and reloaded the same version of UltraVNC that we were using prior. We now recieve a message "SecureVNCPlugin: Authentication Failed, (no plugin interface available)".
We get this when attempting to use the UltraVNC Viewer. Could there be an incompatability with our new HP Laptop?
We tried UltraVNC 1.2.4.0 which is the one we have been using and also tried the latest UltraVNC 1.4.3.1.
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