There's also a .ini file that records the ports in use. EM uses static ports, and none of them are 10000 by default. I'd definitely query the diagnosis, are you sure it is em. Client sqlnet connections could id course be assigned that port by a listener, though I'd be surprised, and anyway 10000 is suspiciously like something a human would choose Niall Litchfield On Jun 24, 2010 5:52 PM, "William Blanchard" <bgblanch@xxxxxxxxx> wrote: You can look at the logs in $ORACLE_HOME/<database>/sysman/log. William Blanchard On Jun 24, 2010, at 11:24 AM, "Jiang, Lu" < Lu.Jiang@xxxxxxxxxxxx> wrote: Hello...