Hi,
I tried to change from RealVNC to UltraVNC. I just started the UltraVNC Setup. I checked the MS Login. And during the installation my existing RealVNC Server shut down (but I have not checked the start UltraVNC Service. So i thought i can run the RealVNC Session until I restart the server). I have no physical access to the server and i couldn´t establish a vnc connection. So I used a reset mechanism of my provider. It worked and I hav a new logon window. The window based on MS Logon (user and password). But I haven´t configured any user yet (as you remember, the connection of my vnc session was closed during the installation).
So i tried the user i have on the machine.
"Administrator" and password
"MYMACHINE/Administrator" and password
I also tried an empty user and the old RealVNC password.
Nothing worked. Is there any chance to connect to the server? Isn´t there some "default" user i can use?
Thx for your help.
Andi
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
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
After interrupted installation -> can´t log on
After interrupted installation -> can´t log on
Last edited by abi on 2006-05-30 17:20, edited 1 time in total.
@marscha: I checked the checkbox during the installation, so it has to be mslogon II. Does that mean there is no chance and i have to force a sysadmin to go there physically? 
@redge: I have tried the vncpwd, but it always tells me, that i can´t connect to the remote host vncpwd /h:.... /u:Arbeitsgruppe\Administrator /p:****** /v:mypwd
VNCPWD.EXE - v1.1.1
Copyright (c) 2002, 2003 by Patrick Garnier
This program is freeware - http://www.sysworksoft.net
Feel free to send any comments to patrick dot garnier at sysworksoft dot net
ERROR: Can't connect to remote host specified
[mod=494,1149110185]modified e-mail for stop spamming[/mod]
@redge: I have tried the vncpwd, but it always tells me, that i can´t connect to the remote host vncpwd /h:.... /u:Arbeitsgruppe\Administrator /p:****** /v:mypwd
VNCPWD.EXE - v1.1.1
Copyright (c) 2002, 2003 by Patrick Garnier
This program is freeware - http://www.sysworksoft.net
Feel free to send any comments to patrick dot garnier at sysworksoft dot net
ERROR: Can't connect to remote host specified
[mod=494,1149110185]modified e-mail for stop spamming[/mod]
Last edited by abi on 2006-05-31 21:16, edited 3 times in total.
If you have somehow access to the registry of the remote computer you could deactivate ms-logon and use the classic vnc authentication.
I think that Tightvnc and UltraVNC use the same keys for classic auth so you could use the old passwd.
You have to set HKLM\Software\ORL\WinVNC3\MSLogonRequired to 0 to deactivate mslogon.
I think that Tightvnc and UltraVNC use the same keys for classic auth so you could use the old passwd.
You have to set HKLM\Software\ORL\WinVNC3\MSLogonRequired to 0 to deactivate mslogon.

