Navicat's solution to the database cannot be connected

The following steps can be used to resolve the problem that Navicat cannot connect to the database: Check the server connection, make sure the server is running, address and port correctly, and the firewall allows connections. Verify the login information and confirm that the user name, password and permissions are correct. Check network connections and troubleshoot network problems such as router or firewall failures. Disable SSL connections, which may not be supported by some servers. Check the database version to make sure that the Navicat version is compatible with the target database. Adjust the connection timeout, and for remote or slower connections, increase the connection timeout timeout. Other workarounds, if the above steps are not working, you can try restarting the software, using a different connection driver, or consulting the database administrator or official Navicat support.

How to fix Navicat's inability to connect to the database

When using Navicat to connect to the database, you may encounter unavailability. This article will explore the common causes of this problem and provide corresponding solutions.

1. Check the server connection

• Make sure the database server is running.
• Verify that the server address and port are correct.
• Check if the firewall settings allow connections.

2. Verify login information

• Make sure the username and password are correct.
• Check whether the user has permission to connect to the database.
• If the password contains special characters, make sure it is escaped correctly.

3. Check network connection

• Verify that there is a network connection between the client and the server.
• Try pinging the server IP address to check connectivity.
• Troubleshoot any network problems, such as router or firewall failure.

4. Disable SSL

• Try to disable SSL/TLS connections, as some servers may not support them.
• Find the SSL option in the connection settings and disable it.

5. Check the database version

• Ensure that the Navicat version is compatible with the version of the target database.
• Check for updated Navicat versions or database software patches.

6. Adjust the connection timeout

• Increase connection timeout, especially for remote or slower connections.
• Find the timeout option in the connection settings and adjust it to a higher value.

7. Other solutions

• Restart Navicat and the database server.
• Try using a different connection driver (ODBC/JDBC/OLEDB).
• Consult with the database administrator or official Navicat support.

Following these steps can help resolve the problem that Navicat cannot connect to the database. This issue can be quickly diagnosed and resolved by systematically checking connections, login information, network, SSL settings, version compatibility, and connection timeouts.

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