What should I do if MySql cannot connect to the local address localhost?

Solution to the problem that mysql cannot connect to localhost: 1. Check whether the IP address can be pinged; 2. Check whether the firewall allows port 3306. If not, set the port number to 3306; 3. Start the database Just run the command "net start mysql" to try to connect.

Recommendation: "mysql tutorial"

First method: Check whether the IP address can be pinged, if so Look at the second one

The second one: check whether the firewall allows port 3306, management tools--Advanced Security Firewall--inbound rules--new rule

Click on the port

Set the port number to 3306

Allow Connection - write whatever name you want, for example: allow inbound port 3306

Then the administrator runs the command prompt (win R) cmd

Start database net start mysql Then try to connect!

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