I have a vcenter server installed on a Windows server system. The vcenter server is not starting, it is showing an error message as
vSphere Client could not connect to X.X.X.X
An unknown connection error occurred. (The server could not interpret the client's request. (The remote server returned an error: (503) Server Unavailable.))
Request help at the earliest as this is one of the production vcente server.
Please upload the next log:
Could you see the Service Dependencies of the services on the Windows Service Manager and if it has try to start the dependencies and if they fail also upload the logs and describe which services failed.