Mysql 连接不上远程数据库，求助

如题，放假在家玩树莓派集群，其中一台连不上数据库，今日怪事+1

============================================================================= 状态描述：

平台树莓派 4B，架构 armv7，系统 raspbian 最新（ debian10 ）

数据库版本 mariadb-server version: 10.3.22

安装 mariadb-server & client 后，

本地 mysql （ client ）、以及 pypmyadmin可以连接数据库，工作正常。

远程连接（ navicat 等）不能连接数据库，提示

>> mysql -h192.168.0.109 -uroot
ERROR 2002 (HY000): Can't connect to MySQL server on '192.168.0.106' (10061)

============================================================================= 配置方面，

/etc/mysql/my.cnf 中设置了绑定任意

[mysqld]
bind-address=0.0.0.0

数据库方面,select user,host from mysql.user; 返回

+------+------+
| user | host |
+------+------+
| root | %    |
+------+------+

网络方面，ifconfig 显示

wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.0.106  netmask 255.255.255.0  broadcast 192.168.0.255
        inet6 fe80::aff7:f451:c78e:c4eb  prefixlen 64  scopeid 0x20<link>
        ether dc:a6:32:10:7a:44  txqueuelen 1000  (Ethernet)
        RX packets 123134  bytes 147417079 (140.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 49386  bytes 8702996 (8.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

远程连接能正确到达指定端口

C:\Windows\System32>tcping 192.168.0.106 3306

Probing 192.168.0.106:3306/tcp - Port is open - time=4.249ms
Probing 192.168.0.106:3306/tcp - Port is open - time=2.502ms
Probing 192.168.0.106:3306/tcp - Port is open - time=3.440ms
Probing 192.168.0.106:3306/tcp - Port is open - time=2.913ms

Ping statistics for 192.168.0.106:3306
     4 probes sent.
     4 successful, 0 failed.  (0.00% fail)
Approximate trip times in milli-seconds:
     Minimum = 2.502ms, Maximum = 4.249ms, Average = 3.276ms

感觉十分奇怪，第一次遇到这种情况，感觉配置和网络都没啥问题，不知道为啥连不上，求助。