tnsping takes long time on 9i instance

[sudheer_nm]

Hi,

I am using Oracle 9.2 database. I have created three instances manually using scripts.
Here is my configs.(mentioning only for one instance)

1. Listener.ora
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = XX)(PORT = 1521))
)
)
)

2. tnsnames.ora
ACC=
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = XX)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = ACC)
)
)
3. sqlnet.ora
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES)