Error "IO exception: The Network Adapter could not establish the connection" occurs when configuring CA Service Desk Manager (SDM).

Document ID : KB000031047
Last Modified Date : 14/02/2018
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The following error message occurs when running CA Service Desk Manager (CA SDM) configuration (pdm_configure) with Oracle as the MDB database:

ERR_INFO=IO exception: The Network Adapter could not establish the connection



This is a very generic error that could occur due to various reasons. Below are the points that need to be checked to fix this problem:

  • Wrong port number or IP address (or DNS host name) is used.
  • Oracle listener is not configured properly or not available.
  • Listener process (service) is not running. Restart it with the "lsnrctl start" command or on a Windows OS by starting the listener service. 
  • Ensure the correct hostname is specified in listner.ora.
  • Add the hostname and IP address in the hosts file located under C:\Windows\System32\drivers\etc folder.
  • This could be a problem with the Oracle SYS user password. Check with the Oracle DBA for the correct credentials.