Why tns no listener error

In addition, it may be caused by a connectivity problem with the network. First, make sure that the listener is up and running. This should show the current status of the listener. If the listener is up and running, the problem may lie with the listener not having been associated with the correct instance or protocol.

To make sure all instances are correct, you can obtain basic information about the listener and the configuration settings by simple commands, such as the STATUS command. The status command will give basic information about the listener as well as the configured protocol addresses, summary of the services registered, and the service handlers allocated to each service.

Below are descriptions of each status signals. If you are still unable to get the listener up and running, you may want to delete the listener and create a new one in the network configuration assistant. The last possible cause may be a network problem. Check to see that there is a proper network connection if you find that the listener has been configured and is running correctly. Viewed 76k times. All rights reserved. Service "XE" has 1 instance s.

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Thank you, John Improve this answer. My sequence of steps for troubleshooting Is the listener resolvable? Bjarte Brandt Bjarte Brandt 3 3 silver badges 11 11 bronze badges.

In listener. Its too late but I also face this problem currently and I solved this by. Umair Anwaar Umair Anwaar Sign up or log in Sign up using Google. See: "TNS could not resolve connect identifier specified", " Labels parameters Labels: None c-oracle c-oracle Delete Enter labels to add to this page: Looking for a label? Just start typing. Easy to use Average Difficult to use This article is: Thank you for your feedback.

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