Downloading files from quarantine in the Endpoint Protection Manager results in a failure and a blank page being displayed instead of the download starting.
access.log shows a 500 error:
"POST /Reporting/command/runcommand.php HTTP/1.1" 500
Reporting.log shows a failure calling the function "is_sqlsrv_enabled".
PHP Fatal error: Uncaught Error: Call to undefined function is_sqlsrv_enabled() in C:\Program Files (x86)\Symantec\Symantec Endpoint Protection Manager\Php\Include\Common\connectdb.php:131
Release : 14.3 RU2
Connectdb.php may have been locked during the SEPM upgrade and an older version is present on the system. The call to is_sqlsrv_enabled was removed starting with 14.3 RU2.
File should be replaced with a known good copy and SEPM services restarted.