Help: ORA-12224: TNS:no listener

When trying to connect from my Windows 3.1 PC over our Ethernet network to an HP (9000, I think), I often get the error, ORA-12224: TNS:no listener. But at other times, the connect works just fine. This happens on several applications: SQL Plus, Forms designer, and Runforms.

Sometimes the problem is so persistent that I have to start Personal Oracle and connect to that, then switch to the other connection. I don't know why running PO7 makes a difference, but it seems to help.

If you have any ideas on what to do to fix this, I would really appreciate your help.

Thanks,
Steve Cosner

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