Server will not connect

[Loplop69]

I am very new to Jellyfin.  But for the past week, everything seemed to be ok.
Today when I try and start the Jellyfin server (using the icon), nothing seems to happen.
You can see the Jellyfin icon go to the app tray, but it disappears if you try to click on it.
I have searched the web with no real solution.
If I need to post a log here, please let me know how to get to them.
I appreciate any help you can provide.

[TheDreadPirate]

When you launch the tray app, right click on it and "Run as administrator".

[Loplop69]

Thank you for your response.
Tried that with the same result.

[TheDreadPirate]

Can you share your jellyfin logs with us? C:\ProgramData\Jellyfin\Server\log

[dntemp]

I had the same problem with my Jellyfin Server on Windows 10. A few days everything was okay. Suddendly the Server won't run any longer, the tray icon disappers after a few seconds. I'm not sure if it is since the February Windows 10 Update, but the solution was very simple: Just run the Server Installer again (and keep all the settings) and everything works.