You noticed that your Enforce console cannot connect to the DB and throws log in errors.
In "localhost.log" you see
"Caused by: oracle.net.ns.NetException: Listener refused the connection with the following error: ORA-12514, TNS:listener does not currently know of service requested in connect descriptor"
"lsnrctl status" in cmd does not show you running 'protect' account.
"
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=enforce.example.com)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for 64-bit Windows: Version 19.0.0.0.0 - Production
Start Date 02-AUG-2022 15:16:54
Uptime 8 days 18 hr. 39 min. 21 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File C:\oracle\product\19.3.0.0\db_1\network\admin\listener.ora
Listener Log File C:\oracle\diag\tnslsnr\Enforce\listener\alert\log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=Enforce.example.com)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\PROTECTipc)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
"
Most probably DB AutoStart is disabled in registry.
Services.msc
Service Properties: Set the Oracle service to startup type=automatic
RegEdit
Navigate to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\ORACLE\oracle_home_name and set the key ORA_<SID>_AUTOSTART=TRUE