You can start and stop regions on your local machine only. These options are not available when you select a remote server.
A security dialog box might appear. If the server you are starting has no security set, click OK to continue. Otherwise, select Server is secured and enter the credentials. You can choose to store these connection settings to skip this step in the future when starting, stopping, or restarting the server, or submitting a JCL job.
To clear saved the connection settings, right-click your enterprise server in Server Explorer and click Clear credentials.
You can see the progress of the command in the console if you have enabled Show Local Console for your enterprise server.