About change MySQL Admin PW

When I install phpMyAdmin,change MySQL Admin default PW AND reboot my EX2……

I can‘t visit my EX2 by SMB……unless change MySQL Admin User‘s PW to default and reboot EX2

I want to change MySQL Admin User‘s PW,How can I configure SMB, in order to allow him to work

Thanks

Please bear in mind such proceedings are not warranted or supported by Western Digital. That said, hopefully an experienced User will be able to assist and help you configure your unit as desired.

I do not understand why change PW will cause SMB does not work.
SMB need use weak passwords user:“admin / admin” access to the MySQL?? ?! ???

NOW,when I Installed WordPress and phpMyAdmin,link from WD official website;
make sure anyone can view WordPress from the Internet
Then anyone can use admin/admin user access my MySQL from Internet- -!

Is this a security vulnerability?

I’m wrong……After the restart SMB does not work,because I used SSH command——“reboot” to restart the system,whether or not I change the PW

When I use “reboot“ option on the control panel to restart OS
SMB can work

so,if I want to use SSH to restart OS;what command should I use?
Thanks