Unable to connect to an instance using EM but connecting fine with SQL*Plus

Question

Good morning,
I followed these steps (from the 2 Day DBA document):
1. I created a template (including database) from an instance named "orcl" using DBCA, before proceeding to create the template, DBCA informed me that the instance would be shutdown, I told it to proceed.
2. The template was created successfully.
3. I am now unable to log into the orcl instance using EM, yet I can log into that instance without any problems using SQL*Plus.
The Question: Why am I not able to connect to the instance using EM ? and what do I need to do to correct this problem ?
Thank you very much for your help,
John.
PS: in case it may be helpful, the listener, tnsnames and Sqlnet files follow:
# listener.ora Network Configuration File: E:\Oracle\product\11.2.0\dbhome_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = E:\Oracle\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:E:\Oracle\product\11.2.0\dbhome_1\bin\oraclr11.dll")
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = ORACLE2DAY1)(PORT = 1521))
ADR_BASE_LISTENER = E:\Oracle
# tnsnames.ora Network Configuration File: E:\Oracle\product\11.2.0\dbhome_1\network\admin\tnsnames.ora
# Generated by Oracle configuration tools.
DBCA =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = ORACLE2DAY1)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = dbca.localsite.com)
ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
LISTENER_ORCL =
  (ADDRESS = (PROTOCOL = TCP)(HOST = ORACLE2DAY1)(PORT = 1521))
ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = ORACLE2DAY1)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl.localsite.com)
# sqlnet.ora Network Configuration File: E:\Oracle\product\11.2.0\dbhome_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers choose to
# install "Software Only", this file wont exist and without the native
# authentication, they will not be able to connect to the database on NT.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)

Answer 1

Hi Chinar,
What you suggested solved the problem.
I am grateful for your help but, please, the next time you suggest a process that takes over an hour to complete, let me know beforehand.
thank you for your help, I do appreciate it.
John.
PS: here are the result of the process:
0 07:57 [Oracle] [17G] [608M] E:\Temp>emca -deconfig dbcontrol db -repos drop
STARTED EMCA at Aug 15, 2010 7:58:21 AM
EM Configuration Assistant, Version 11.2.0.0.2 Production
Copyright (c) 2003, 2005, Oracle.  All rights reserved.
Enter the following information:
Database SID: orcl
Listener port number: 1521
Password for SYS user:
Password for SYS user: abc123
Password for SYSMAN user:
Do you wish to continue? [yes(Y)/no(N)]: y
Aug 15, 2010 7:59:37 AM oracle.sysman.emcp.EMConfig perform
INFO: This operation is being logged at E:\Oracle\cfgtoollogs\emca\orcl\emca_201
0_08_15_07_58_21.log.
Aug 15, 2010 7:59:38 AM oracle.sysman.emcp.EMDBPreConfig performDeconfiguration
WARNING: EM is not configured for this database. No EM-specific actions can be p
erformed.
Aug 15, 2010 7:59:38 AM oracle.sysman.emcp.EMReposConfig invoke
INFO: Dropping the EM repository (this may take a while) ...
Aug 15, 2010 8:06:59 AM oracle.sysman.emcp.EMReposConfig invoke
INFO: Repository successfully dropped
Enterprise Manager configuration completed successfully
FINISHED EMCA at Aug 15, 2010 8:07:17 AM
0 08:09 [Oracle] [17G] [355M] E:\Temp>emca -config dbcontrol db -repos create
STARTED EMCA at Aug 15, 2010 8:09:23 AM
EM Configuration Assistant, Version 11.2.0.0.2 Production
Copyright (c) 2003, 2005, Oracle.  All rights reserved.
Enter the following information:
Database SID: orcl
Listener port number: 1521
Listener ORACLE_HOME [ E:\Oracle\product\11.2.0\dbhome_1 ]:
Password for SYS user:
Password for DBSNMP user:
Password for SYSMAN user:
Password for SYSMAN user: Email address for notifications (optional):
Outgoing Mail (SMTP) server for notifications (optional):
You have specified the following settings
Database ORACLE_HOME ................ E:\Oracle\product\11.2.0\dbhome_1
Local hostname ................ 192.168.3.134
Listener ORACLE_HOME ................ E:\Oracle\product\11.2.0\dbhome_1
Listener port number ................ 1521
Database SID ................ orcl
Email address for notifications ...............
Outgoing Mail (SMTP) server for notifications ...............
Do you wish to continue? [yes(Y)/no(N)]: y
Aug 15, 2010 8:10:51 AM oracle.sysman.emcp.EMConfig perform
INFO: This operation is being logged at E:\Oracle\cfgtoollogs\emca\orcl\emca_201
0_08_15_08_09_23.log.
Aug 15, 2010 8:11:10 AM oracle.sysman.emcp.EMReposConfig createRepository
INFO: Creating the EM repository (this may take a while) ...
Aug 15, 2010 8:43:41 AM oracle.sysman.emcp.EMReposConfig invoke
INFO: Repository successfully created
Aug 15, 2010 8:44:09 AM oracle.sysman.emcp.EMReposConfig uploadConfigDataToRepos
itory
INFO: Uploading configuration data to EM repository (this may take a while) ...
Aug 15, 2010 8:47:39 AM oracle.sysman.emcp.EMReposConfig invoke
INFO: Uploaded configuration data successfully
Aug 15, 2010 8:48:31 AM oracle.sysman.emcp.util.DBControlUtil configureSoftwareL
ib
INFO: Software library configured successfully.
Aug 15, 2010 8:48:31 AM oracle.sysman.emcp.EMDBPostConfig configureSoftwareLibra
ry
INFO: Deploying Provisioning archives ...
Aug 15, 2010 8:53:19 AM oracle.sysman.emcp.EMDBPostConfig configureSoftwareLibra
ry
INFO: Provisioning archives deployed successfully.
Aug 15, 2010 8:53:34 AM oracle.sysman.emcp.util.DBControlUtil secureDBConsole
INFO: Securing Database Control (this may take a while) ...
Aug 15, 2010 8:54:22 AM oracle.sysman.emcp.util.DBControlUtil secureDBConsole
INFO: Database Control secured successfully.
Aug 15, 2010 8:54:38 AM oracle.sysman.emcp.util.DBControlUtil startOMS
INFO: Starting Database Control (this may take a while) ...
Aug 15, 2010 9:12:50 AM oracle.sysman.emcp.EMDBPostConfig performConfiguration
INFO: Database Control started successfully
Aug 15, 2010 9:13:09 AM oracle.sysman.emcp.EMDBPostConfig performConfiguration
INFO: >>>>>>>>>>> The Database Control URL is https://192.168.3.134:5501/em <<<<
<<<<<<<
Aug 15, 2010 9:14:22 AM oracle.sysman.emcp.EMDBPostConfig invoke
WARNING:
************************  WARNING  ************************
Management Repository has been placed in secure mode wherein Enterprise Manager
data will be encrypted.  The encryption key has been placed in the file: E:/Orac
le/product/11.2.0/dbhome_1/192.168.3.134_orcl/sysman/config/emkey.ora.   Please
ensure this file is backed up as the encrypted data will become unusable if this
file is lost.
Enterprise Manager configuration completed successfully
FINISHED EMCA at Aug 15, 2010 9:14:22 AM
0 09:14 [Oracle] [17G] [603M] E:\Temp>