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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > Unexpected SQL Error. Connection Timeout Expired

Unexpected SQL Error. Connection Timeout Expired

Created by Wilard Bao, last modified by Alexander Aguilar on Feb 28, 2019

Views: 6,494 Votes: 0 Revisions: 9


The following error occurs when NPM is trying to connect to SQL.




* Core all versions


This issue is caused by a connection problem from NPM to SQL. This could be due to SQL user not having right permissions on SolarwindsOrionDB or some underlying network problem.


  1. Open Database Manager and click Add default server.
    If the same error message appears, the connection to SQL needs to be fixed.
  2. Use telnet to verify if port 1433 is open.
  3. If it still does not connect, verify if there is something that is blocking the server from establishing a connection to the SQL server.


Resolution #2:

1, Run the configuration wizard again

2, Select all 3 choices, database/website/services


Resolution #3:

1, Reboot of the Orion server, you may also need to reboot the SQL server.



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