After a Windows update, your Niagara station fails to start. The daemon shows "Starting" but never transitions to "Running", or crashes immediately.
echo %JAVA_HOME%
java -version
If Java is not found, reinstall or repair your Niagara installation.
netstat -ano | findstr :1911
netstat -ano | findstr :4911
If another process is using these ports, stop it or change your station ports.
Run as Administrator:
icacls "C:\Niagara\Niagara-4.x" /reset /T /C