To help locate the causes of listener problems, you can enable additional logging of the listener startup process. 
               	 
            
 
            	 
             
               		
               - On the Enterprise Server Administration Home page, click 
                  		  Edit at the left of the server you want to configure 
                  		
               
-  Go to the Listeners page. 
                  		
               
- At the top of the list of listeners, click the Communications Process 
                  		  Edit button (not Edit for any of the individual listeners). 
                  		
               
- Add the following to the Configuration Information area: 
                  		  [listeners]
logging=3 
- Click 
                  		  OK. 
                  		
               
Listener startup information is now logged, and is available in the log files.