The Enforce console will not load (times out), regardless of which machine or browser you try to connect from.
In the Enforce\logs\tomcat\localhost\ log file you see:
Message: Cannot obtain PersistenceBroker from PersistenceBrokerFactory, found PBKey was org.apache.ojb.broker.PBKey: jcdAlias=oracle-thin, user=null, password=null
org.apache.ojb.broker.PBFactoryException: Borrow broker from pool failed, using PBKey org.apache.ojb.broker.PBKey: jcdAlias=oracle-thin, user=null, password=null
This is an overload state when connecting to the DB. It may be caused by a slow or impaired DB connection, overload from the Enforce side or a temporary memory corruption in the JVM.
Recycling the Enforce services normally resolves the issue. If this occurs frequently, further investigation into DB connectivity may be required.