Software⏱️ 2 min read📅 2026-05-30

How to Fix: Error Code: 2013. Lost connection to MySQL server during query

MySQL server connection timeout issue resolved by increasing the timeout value.

Quick Answer: Increase the MySQL query timeout using the 'set session variable' command or configure the MySQL server to increase its default timeout.

📋 Table of Contents

  1. ⚠️ Common Causes
  2. 🚀 How to Resolve This Issue
  3. 🎯 Final Words

Error Code: 2013 is a common issue in MySQL that occurs when the connection to the MySQL server is lost during a query. This error can be caused by various factors, such as a slow network connection, a misconfigured MySQL server, or an overloaded database.

⚠️ Common Causes

  • Slow network connection
  • Misconfigured MySQL server
  • Overloaded database

🚀 How to Resolve This Issue

Method 1: Increase MySQL Timeout Value

  1. Step 1: Open the my.cnf or my.ini file in a text editor and locate the wait_timeout and init_connect parameters.

Method 2: Optimize MySQL Server Configuration

  1. Step 1: Increase the max_connections, key_buffer_size, and read_rnd_table_size parameters to improve performance.

🎯 Final Words

To resolve the Error Code: 2013 issue, you can try increasing the MySQL timeout value or optimizing your MySQL server configuration. Additionally, ensure that your network connection is stable and your database is not overloaded.

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