Reasons why Navicat Premium cannot connect to the database: 1. Wrong connection information; 2. Firewall or security software; 3. The database server is not running; 4. The database version is incompatible; 5. Network problems; 6. Database service update or maintenance; 7. Database server capacity is full; 8. Hardware or software problems.
The reason why Navicat Premium cannot connect to the database
Navicat Premium is a popular database management tool. Sometimes Users may encounter problems connecting to the database. The following are some common reasons why Navicat Premium cannot connect to the database:
Wrong connection information
- Check whether the database name, username, password and hostname are Enter correctly.
- Make sure you have access to the database.
Firewall or security software
- Firewall or security software may prevent Navicat Premium from accessing the database.
- Make sure these programs are configured to allow Navicat Premium to access the database port.
Database server is not running
- Check if the database server is running.
- If the server is down, start it and retry the connection.
Database version is incompatible
- Make sure you are using a Navicat Premium version that is compatible with the database version.
- If you are using an older version of Navicat Premium, please consider updating it.
Network problem
- Check whether your network connection is normal.
- Try pinging the database server to test the connection.
Other reasons
In addition to the above reasons, the following factors may also cause connection problems:
- The database service is being updated or maintain.
- The database server has reached capacity.
- There is a hardware or software problem.
Solution
If you are experiencing connection issues, try the following solutions:
- Check the connection information carefully.
- Temporarily disable firewall and security software.
- Make sure the database server is running.
- Update Navicat Premium to the latest version.
- Troubleshoot network problems.
- Contact your database administrator for further assistance.
The above is the detailed content of Why can't navicat premium connect?. For more information, please follow other related articles on the PHP Chinese website!

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