Solutions to the firewall that causes Navicat to fail to connect to the database

Solution to the firewall that causes Navicat to fail to connect to the database: Check the firewall settings to make sure that connections from Navicat are allowed. Add firewall exceptions to allow Navicat to connect over private and public networks. Optionally disable the firewall. Check that the port Navicat is using is correct. Make sure the specified database service is running. Restart Navicat and try to reconnect.

Solutions to the firewall that causes Navicat to fail to connect to the database

Problem: The firewall blocks the connection between Navicat and the database.

Solution:

Step 1: Check the firewall settings

• Open Windows Firewall settings.
• Make sure the firewall is enabled.
• Check whether the firewall allows connections from Navicat.

Step 2: Add Firewall Exceptions

• In Firewall settings, click Allow applications or features through Windows Firewall.
• Find the Navicat application and select it.
• Select the "Dedicated" and "Public" check boxes.

Step 3: Disable the firewall (optional)

• If you still cannot connect after adding an exception, try disabling the firewall.
• In Firewall settings, click Enable or Disable Windows Firewall.
• Disable the firewall and try to reconnect.

Step 4: Check the port

• Make sure Navicat connects to the database using the correct port.
• The configuration of the database may specify a specific port.

Step 5: Check the database service

• Make sure the specified database service is running.
• Go to the Service Management Tools and verify that the service is started.

Step 6: Restart Navicat

• After completing the above steps, restart Navicat and try to reconnect.

hint:

• If you use other firewall software, check its settings and add Navicat exceptions.
• Make sure your computer has the latest firewall and antivirus software updates.
• If the problem persists, consult the database administrator or Navicat support team for further troubleshooting.

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