I appreciate the time to answer me. In the meantime (out of desperation because i needed the virtualmachine for work) I gave it a go with specifying root as user and not the servers username "server".
I was able to connect to the virtual Windows10 installation with remote-viewer spice://root@192.168.178.51:5900 But again - then I dont unterstand why it worked as user and later on with specifying the user later on (which doesn't work right now anymore) So it is a permissions problem on my side and I successfully wasted your time. :/ Sorry about that. This happens when "users" try to play with the big boys toys :D Have a nice day you all and thanks for your time. Stefan Am Mi., 16. Nov. 2022 um 09:21 Uhr schrieb Victor Toso < victort...@redhat.com>: > Hi Stefan, > > On Tue, Nov 15, 2022 at 09:53:05PM +0100, Stefan Silberstein wrote: > > Hello developers, > > > > I can imagine that this will be an annoying question for you - > > so I apologize in advance. > > > > I am a user - with a longer history with linux BUT i am > > completely new to virtualization. > > Due to the fact that I got a server donated to me I wanted to > > give it a go and it worked like a charm. > > > > Installed virt-manager, installed Windows10 connected with > > virt-manager - absolutely no problem. > > > > Due to the fact that I need dual monitors I learned that I > > could add another display and connect with spice - and it > > worked immediately. > > > > BUT - without me changing anything (consciously) I wasn't able > > to connect to the virtual machine the next week. > > > > It refuses with "Verbindungstyp konnte nicht von URI ermittelt werden" > > (Connection type could not be determined by URI) > > > > Then i tried to connect with sudo and specifying the user in > > the command line and it once again connected: > > > > sudo remote-viewer spice:⁄⁄server@192.168.178.51:5900 > > Perhaps the URL is the problem. If the IP is 192.168.178.51 and > the port for the VM is 5900, then try > > remote-viewer spice://192.168.178.51:5900 > > If server is a dns that can be resolved, should be fine to use it > instead of ip address > > remote-viewer spice://server:5900 > > > > And now - again without changing anything - it doesn't connect > > with that command as well. > > > > I have sadly NO clue whatsoever where to even search for a > > solution - the internet didn't help me here... > > > > Do you have any hint at all what I might do wrong here? > > > > The machine is available - the port is open and visible > > PORT STATE SERVICE > > 22/tcp open ssh > > 80/tcp open http > > 3389/tcp open ms-wbt-server > > 5900/tcp open vnc > > > > ufw on the server is shut down. > > > > ANY help would be greatly appreciated. > > You can get more verbose information of issues with --spice-debug > command line option too. > > Cheers, > Victor >