how about tnsping, plus you have check that at the target machine the Agent is working, the version /patch level of all the databases are same. NT Chirag DBA <chiragdba@xxxxxxxxx> wrote: yup, it is alive it says. - Chirag On 8/31/05, Nisar Tareen <ntareen@xxxxxxxxx> wrote: Chirag, Can you ping the machine from the OEM monitoring machine,. Nisar Chirag DBA <chiragdba@xxxxxxxxx> wrote: all dbs are on 9iR2. and using OEM for monitoring. Still this is under evaluation from management side. Regards - Chirag On 8/31/05, Nisar Tareen <ntareen@xxxxxxxxx> wrote: hi, Is all the databases are oracle 10g? The agent of the database you can't reach is of which version. good luck. Nisar Tareen Chirag DBA <chiragdba@xxxxxxxxx> wrote: Hi Team, I m quite new to 10g n its oem. One of the machine is running OEM in my organization and we are seeing everything down on the same machine. OEM is running fine for other machines n Databases. for that machine processes we are getting " The agent of this target is unreachable. " Agent shows its already running on that machine. Which parameter needs to set for resolving the problem. Regards - Chirag __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com