2515901 - Error while connecting to DB while connecting to address 0.0.0.0

Error connecting to Database via Configtool when Java is down
Getting an error : Msg:Error while connecting to DB

dev_jcontrol -
[Thr 8104] *** ERROR => invalid return code of process [bootstrap_ID6657451] (exitcode = 66) [jstartxx.c   1647]
[Thr 8104] JControlExecuteBootstrap: error executing bootstrap node [bootstrap_ID6657451] (rc = 66)
[Thr 8104] JControlCloseProgram: started (exitcode = 66)

jvm_bootstrap.out -
Exception occurred:
com.sap.engine.bootstrap.SynchronizationException: Database initialization failed! Check database properties!
 at com.sap.engine.bootstrap.Bootstrap.initDatabaseConnection(Bootstrap.java:477)
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----------==[ Caused by: ]==----------
com.sap.engine.frame.core.configuration.ConfigurationException: Error while connecting to DB.
 at com.sap.engine.core.configuration.impl.persistence.rdbms.DBConnectionPool.createConnection(DBConnectionPool.java:386)
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Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: The connection to the named instance  has failed. Error: java.net.SocketTimeoutException: Receive timed out (local port <PORT NO.> to address 0.0.0.0, remote host unknown).
 at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)

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• Release Independent
• SAP NetWeaver

SAP ERP 6.0 ; SAP NetWeaver 7.0 ; SAP NetWeaver 7.1 ; SAP NetWeaver 7.2 ; SAP NetWeaver 7.3 ; SAP NetWeaver 7.4 ; SAP NetWeaver 7.5 ; SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP enhancement package 1 for SAP NetWeaver 7.3 ; SAP enhancement package 2 for SAP NetWeaver 7.0 ; SAP enhancement package 3 for SAP NetWeaver 7.0

Enterprise Portal 7.0, EP 7.0, Enterprise Portal 7.01, EP 7.01, Enterprise Portal 7.02, EP 7.02, Enterprise Portal 7.03, EP 7.03, Enterprise Portal 7.1, EP 7.1, Enterprise Portal 7.2, EP 7.2, Enterprise Portal 7.30, EP 7.30, Enterprise Portal 7.31, EP 7.31, Enterprise Portal 7.40, EP 7.4, Enterprise Portal 7.50, EP 7.5, Error occured while working with Configuration (Scanning), Error while connecting to DB error, jdbc/pool/, jdbc/pool/<sid>/, exitcode = 66, error executing bootstrap node, java.net.SocketTimeoutException, com.microsoft.sqlserver.jdbc.SQLServerException, Database initialization failed, Check database properties, invalid return code of process,Error connecting to DB , KBA , BC-JAS-ADM-ADM , Administration , Problem