Troubleshooting Oracle TNS Failed to Start Error

127.0.0.1     localhost
10.10.10.10   mybox

# sqlnet.ora Network Configuration File: C:\DevSuiteHome_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
 
SQLNET.AUTHENTICATION_SERVICES= (NONE)
NAMES.DIRECTORY_PATH= (TNSNAMES)

# listener.ora Network Configuration File: C:\DevSuiteHome_1\NETWORK\ADMIN\listener.ora
# Generated by Oracle configuration tools.
 
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = PLSExtProc)
      (ORACLE_HOME = C:\oracle\product\10.2.0\db_1)
      (PROGRAM = extproc)
    )
  )
 
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
    )
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = mybox.my.com)(PORT = 1521))
    )
  )
 
TRACE_LEVEL_LISTENER = ADMIN

# tnsnames.ora Network Configuration File: C:\DevSuiteHome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
 
ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = mybox.my.com)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )
 
EXTPROC_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = mybox.my.com)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVICE_NAME = PLSExtProc)
    )
  )

C:\oracle\product\10.2.0\db_1\bin;C:\DevSuiteHome_1\bin;C:\DevSuiteHome_1\jdk\jre\bin\classic;C:\DevSuiteHome_1\jdk\jre\bin;C:\DevSuiteHome_1\jdk\jre\bin\client;C:\DevSuiteHome_1\jlib;C:\DevSuiteHome_1\jre\1.4.2\bin\client;C:\DevSuiteHome_1\jre\1.4.2\bin;