WordPress Multisite "Error establishing a database connection"

You are sure you entered right database name, database user and server but still show error "Error establishing a database connection" on the front, what the reason ? If you met that in a multisite WordPress installation then it may caused by wrong domain name setting in you database.

  1. Go to the dabhoboard such as http://localhost/wordpress-401-mu/wp-admin you will see the following screen.

2-visit-dasbhoard

  1. As the screen printed it cannot find out the site localhost/wordpress-401-mu/ in your database table mur_blogs ( if you use default database prefix then it is wp_blogs ).

  2. Follow the instruction and open you database with phpmyadmin( or other database management tool ), and open the table mur_blogs ( default wp_blogs ). Plase change the domain & path to correct as the follow.

  • Because you use localhost as the domain in you XAMPP, so domain always should be localhost, and the primary site may be localhost/your-directory-name/sub_site/

3-change-domain-path-to-right


Posted from my blog with SteemPress : https://waytowp.com/wordpress-multisite-error-establishing-database-connection/

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Thank you for your review, @portugalcoin! Keep up the good work!