Hi hamergil,
I believe you are doing well.
I have gone through the problem you are facing, please check with below details which will help you to resolve the same.
It seems that you are trying to connect to your external database with the user (admin) which is not exist in your external database OR it may do not have sufficient permissions to perform actions on your external database. Please make sure that you should have user in your external database with below details.
Username: admin (Your WP admin username)
Password: ********** (Your WP admin password)
privileges: All privileges
Note: Please enter the same username and password in plugin settings page in your WP admin panel.
Additional Information: Please try to understand the plugin behavior through below steps.
1. When you install “External DB Connect” plugin, you can see the settings page in your WP admin panel.
2. You should have access to the external database you are trying to connect, say you have “root” user with all privileges, which will be used by the plugin to perform operations.
3. Enter all the required details on settings page. Note here you have to enter user=”root” and password=”PASSWORD_FOR_USER_root” along with other details like host name, privileges to be given to end users to access data from database.
4. Whenever a new user (End User) is created OR existing user is edited in WP, plugin will create a fresh user in your “External Database” with WP Username and Password with given privileges (permissions).
5. That’s it, now the user is ready to access the data from your “External Database”.
Note: Here you need a user which will be used by plugin to deal with your “External Database”. And plugin will handle rest of the things. Also make sure, if you are installing “External DB Connect” on existing WP site having active users, then you have to edit all the users explicitly. No worries for upcoming (new) users.
I hope this may help. Please feel free to ask if you have any queries.
Thanks for using plugin and reporting an issue.
Regards
Sandip S