When a password is changed, the background Roon Server process can sometimes get stuck in an authentication loop trying to use the old cached credentials, which prevents the apps and user interface from loading.
To force the system to ask for your new password, please try the following:
On your computer, locate the Roon Server icon in your system tray or taskbar (near the clock).
Right-click the icon and select Quit or Exit.
Relaunch Roon Server from your Start menu or Applications folder.
Wait for about 10 minutes. This delay allows the server connection to fully time out with our cloud system. After waiting, open Roon on your computer or phone, and you should be redirected to the login screen to enter your new password.
Please let us know if the login screen appears after the restart and wait time!