Hello,
Please follow the below mentioned article. That might help you to resolve your issue.
Link: Unable to access Plesk UI or its database on Linux: Access denied for user 'admin'@'localhost' (using password: YES)
Thank you
Hello,
I suggest you to check with the plesk article : All about MySQL Remote Access Under Plesk – Full Guide this might help you to resolve the issue.
Thank you
Hello,
Hope you are doing well..!!
To solve the issue and reconnect Plesk to the MySQL server do the following:
Connect to the server using RDP.
Stop the MariDB server (but not "Plesk SQL Server") from running on port 3306 using the Plesk Services Monitor, which can be started from the...
Hello,
Hope you are doing well...!!
Please check with the below steps.
1. Check with the Port you are using is correct.
2. Check with the Network configuration.
3. If port is incorrect try to resolve it via VNC.
4. Check with the Firewall connection.
Thank you