Error :"Connect timeout occurred"

Hi Experts,
I installed ODBC client and wanted to test the connection using my oracle TNS. For some reason i'm getting "Connect timeout occurred" when i tried to test the connection. Below are the database details.
Can you please look into this and provide solutions on how to resolve this.
Database version : Oracle 10 g
Oracle Client version : Oracle 11 g
tnsnames:
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = BHELRND)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)

Hi,
Can try below way,
1. Copy your tnsnames.ora to {Oracle_BI1}\network\admin directory & {oracle_common}\network\admin directory (only the former is needed as that is the ORACLE_HOME)
2. Or instead of tnsnames.ora source entry, use the full expanded tnsnames as shown below
(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.10.10)(PORT = 1521))(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = orcl)))
Note: put it u r IP, Port service name etc.
alternative method, try to test it OCI Call interfact
//database_host[:port]/service_name (RPD -->physical layer --> put it under u r dsn name)
for more refer, http://gerardnico.com/wiki/dat/obiee/oci
Thanks
Deva

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