In case you are having problems in starting your listener then try starting “OracleOraDb11g_home1TNSListener” windows service. This will start your listener and most probably solve your problem. To start the listener you just have to write
If the output of this command looks like the one shown in the picture below then it clearly means your listener is not running thus next what you have to do is to start the listener. This command will show you the status of your listener. To check whether Listener is up and running or not, simply open up your command prompt with Administrative privileges and Write If your problem is still there and you haven’t gotten rid of that nasty error then there is a possibility that your Listener is not running. But if “The network adapter could not establish the connection” error is still there, then don’t worry just follow the next step. If this solves your problem then you can avoid the next step. In case of Listener.ora file check for Host and Port entry in Listener tag for valid hostname and port number.Īnd if you are using TNSnames.ora file for validating the hostname and port number then search for the entry which has the same name as your SID and then check for host and port number entry in that particular tag.
In case you don’t have access to listener.ora file then you can check the tnsnames.ora file. After all “It’s the small things in a relationship that means the most.”įor the valid hostname and port number, you can check the Listener.ora if you have access to your server as the listener is a server process. Though these are small things we cannot avoid them. Step 1: Make sure your entries are correctįirst of all to solve “The network adapter could not establish the connection” error, check whether you have entered the correct username and password as well as the correct Hostname and Port number.