May you have some hidden special (e.g. UTF-8) characters in your file or some kind of encoding or newline problem? I was able to run the command with the given example file without any problems 🙂

That's indeed a very special issue we've never seen before. First of all it looks like you're running Windows 7 which unfortunately is not supported by Veyon any longer. Does the issue appear with other Win10 computers as well? Does the affected computer have a special display configuration (color depth, resolution etc.?) Which version of Veyon is installed on the computer?

@tatanas Any chance you can test with the internal VNC server and disable the external UltraVNC server instance temporarily? That would allow us to figure out whether your issues are related to the external VNC server feature in Veyon.

@walery I removed version 4.7.0
Installed 4.6.0
Everything works now.

@zeltron80 What do you mean by this statement, can you be more descriptive please.

Any news here?

@benoitfouc
You need to open veyon-configurator and switch the View to Advanced. Then you go to the Service tab and there is the option "Hide tray icon".

I knew better than to install a .0 version of a program!
Going back to the earlier one for now. . .
I need it working!

@tobydox nice. This solved an issue I've been struggling with for quite q few days:) thanks!

@hitzl Hello, Did you manage to make it running ? Thanks, Delvasse

Hi, great news! It's working VEYON + ASTER !!!

I made a video with english speaking and portuguese as well, here follows the link:
https://www.youtube.com/watch?v=V0Dj6mj1ico (English)
https://www.youtube.com/watch?v=R8myaZpd444 (Portuguese with captions corrected)

Enjoy it!

That's indeed a strange behavior. Are you using the builtin network object directory, i.e. added the student computers manually in Veyon Configurator? If so, did you enter IP addresses or host names in the host address column?

Thank you for sharing your findings!