Why won't (components of) my cluster start?

A quick summary of some common causes for cluster startup issues are:

• Your cluster references a non-existent, invalid, or expired license file.
• Invalid input in configuration file.
• Invalid port specified or port already in use.
• The operating system user does not have the required permissions for the operating system or the file system.
• The specified directory for management node persistence is invalid or inaccessible.
• Windows password has expired.
• There are no available slots to run the EGO services.