"EnableCertificates" property under shepherd_config.php is set to False.
Go to https://<Bit9 server name>/shepherd_config.php and set the property "EnableCertificates" to TRUE. Do NOT make any changes to other properties as it can cause unexpected behavior including breaking of the Bit9 server installation.
If the "EnableCertificates" is not listed on the shepherd_config.php, run this SQL script instead:
value='true' is case sensitive for this specific property. Use all lower case.