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Articles

  • On-Premise DNN Database Backup

    Overview Database backup is a common maintenance task. It is highly recommended as a part of the general disaster recovery strategy and before any kind of significant production change. The process ma...

  • Connection pool timeout due to max pool size

    Overview When there is an increase in the number of requests made to the server, some connections get a timeout error and are not processed. The following error is shown in logs: System.InvalidOperati...

  • An Item with the Same Key Has Already Been Added

    Overview If there are duplicate values in the database, you may encounter the following error message in the DNN Logs located in the Portals/_default/Logs folder and the browser console logs by pressi...

  • Cannot connect to the database when accessing the site

    Overview  Users may be prevented from accessing their DNN Site, receiving the message The connection to the database has failed, however, the application is already completely installed, a 500 error p...

  • Intermittent site outages with SQL server connection errors

    Overview If you are experiencing site outages that occur intermittently but regularly and which resolve on their own, check your server logs for the following error: System.Data.SqlClient.SqlException...

  • Database table for DNN user information

    Overview You would like to know what is the name of the database table that stores DNN registered user information. Information The registered user information in DNN is stored in the Users Database t...