lost connection to MySQL server at waiting for initial communication packet，system error:o

1 可以先测试mysql本地连接石否正常

2 正常的话查看远程连接的IP在mysql中是否有权限

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'   IDENTIFIED BY '123123' WITH GRANT OPTION;

note：（记得修改IP抵制和密码）