Why does SYS service status keep switching between Starting and Stopped?

Question

Why does the status of SYS service keep switching between Starting and Stopped status in Service Manager?

Reason

Reason 1: The SYS server's hardware has changed, causing the license detection failure and the SYS service starting failed.

Reason 2: The files under the directory of SYS have been damaged or lost.

Reason 3: The database does not work, or connecting to the database failed.

Solution

For reason 1: Stop services in watchdog, and then delete the fnood folder in Disk C, finally start services and update license.

For reason 2: Please check the files under the directory of SYS. If they are damaged or lost, please contact out technical supports to repair or restore the files.

For reason 3: Check the database status.