无法实现主从复制 Slave_IO_Running: Connecting Slave_SQL_Running: Yes

问题：
无法实现主从复制，请问，这是怎么回事？网上找了，试了 都不行，求教一下，谢谢！

Slave_IO_State: Connecting to master
Slave_IO_Running: Connecting
Slave_SQL_Running: Yes

排除了如下的问题

a、网络主从是互通的
b、主服务器上的slave账号密码也是ok的（admin/admin）
c、防火墙已关闭 (永久关闭)
d、设置的pos也对 (Exec_Master_Log_Pos: 592 对应master上的Position)
c、id问题，经检查配置也是ok的，主从也都是唯一的

参考
http://blog.chinaunix.net/uid-25909722-id-4608943.html
https://www.e-learn.cn/content/mysql/2355659
https://www.cnblogs.com/zhengdongdong/p/11193676.html
https://blog.csdn.net/daicooper/article/details/79905660

，依然没有解决

下面是我的配置

主设置

grant replication slave on *.* to 'admin'@'192.168.30.131' identified by 'admin';

从设置：

change master to master_host= '192.168.30.128', master_user='admin', master_password='admin', master_log_file='mysqlbin.000007', master_log_pos=595;

主服务器

mysql> show master status\G
*************************** 1. row ***************************
             File: mysqlbin.000007
         Position: 595
     Binlog_Do_DB: 
 Binlog_Ignore_DB: mysql
Executed_Gtid_Set: 
1 row in set (0.00 sec)

从服务器

mysql> show slave status\G
*************************** 1. row ***************************
               Slave_IO_State: Connecting to master
                  Master_Host: 192.168.30.128
                  Master_User: admin
                  Master_Port: 3306
                Connect_Retry: 60
              Master_Log_File: mysqlbin.000007
          Read_Master_Log_Pos: 595
               Relay_Log_File: relay-log.000001
                Relay_Log_Pos: 4
        Relay_Master_Log_File: mysqlbin.000007
             Slave_IO_Running: Connecting
            Slave_SQL_Running: Yes
              Replicate_Do_DB: 
          Replicate_Ignore_DB: 
           Replicate_Do_Table: 
       Replicate_Ignore_Table: 
      Replicate_Wild_Do_Table: 
  Replicate_Wild_Ignore_Table: 
                   Last_Errno: 0
                   Last_Error: 
                 Skip_Counter: 1
          Exec_Master_Log_Pos: 595
              Relay_Log_Space: 154
              Until_Condition: None
               Until_Log_File: 
                Until_Log_Pos: 0
           Master_SSL_Allowed: No
           Master_SSL_CA_File: 
           Master_SSL_CA_Path: 
              Master_SSL_Cert: 
            Master_SSL_Cipher: 
               Master_SSL_Key: 
        Seconds_Behind_Master: NULL
Master_SSL_Verify_Server_Cert: No
                Last_IO_Errno: 2003
                Last_IO_Error: error connecting to master '[email protected]:3306' - retry-time: 60  retries: 2
               Last_SQL_Errno: 0
               Last_SQL_Error: 
  Replicate_Ignore_Server_Ids: 
             Master_Server_Id: 0
                  Master_UUID: 
             Master_Info_File: /usr/local/mysql/data/master.info
                    SQL_Delay: 0
          SQL_Remaining_Delay: NULL
      Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates
           Master_Retry_Count: 86400
                  Master_Bind: 
      Last_IO_Error_Timestamp: 191229 13:03:22
     Last_SQL_Error_Timestamp: 
               Master_SSL_Crl: 
           Master_SSL_Crlpath: 
           Retrieved_Gtid_Set: 
            Executed_Gtid_Set: 
                Auto_Position: 0
         Replicate_Rewrite_DB: 
                 Channel_Name: 
           Master_TLS_Version: 
1 row in set (0.03 sec)