Question

Listener status is 'UNKNOWN'

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hi,

I am having a database 'testdb' in Oracle 9i / Windows 2000 adv server platform.

Sometimes, listener status becomes "UNKNOWN" and I am not able to get the connection.  When I am stating the listener again, it will gives the following errors.
 1. ORA-12560 TNS protocol adapter error
 2. ORA-12154 TNS could not resolve service name

What may be problem and let me know the procedures to solve it.

Kindly help.

R.Riaz.

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