ERROR 1130: Host '192.168.1.3' is not allowed to connect to this MySQL ERROR 1062 (23000): Duplicate entry '%-root' for key 'PRIMARY'

use mysql
 
mysql> select host, user from user;

将相应用户数据表中的host字段改成'%'；

update user set host='%' where user='root';

ERROR 1062 (23000): Duplicate entry '%-root' for key 'PRIMARY' 不予理会

flush privileges;

重新远程连接OK