
The WSDL response pretty much goes often unnoticed in DRM until we try to use it in some way like the GL integration. The APIAdapter?wsdl and the oracle-epm-drm-webservices/DrmService?wsdl services usually load fine when the services are up. But I started getting the page cannot be displayed errors one day.

We need to follow a set of steps to make sure the services are up again, including taking a backup of and then deleting a lok file, as shared below:
1. Go to Services
Stop Oracle Hyperion EPM Server - Java Web Application (epmsystem1)
2. Go to:
C:\Oracle\Middleware\user_projects\domains\EPMSystem\servers\EPMServer0\tmp
Delete:
EPMServer0.lok
3. Go to Services
Stop Oracle DRM Server Processes
4. Go to Services
Start Oracle Hyperion EPM Server - Java Web Application (epmsystem1)
5. Go to Services
Start Oracle DRM Server Processes
6. Start EPM System (under Foundation Services)
7. Start Admin Server for Weblogic Server (under Oracle Weblogic -> User Projects -> EPMSystem)
Once this is done, try visiting the WSDL URL again, and it should be running fine.