SQLSTATE[HY000] [1045] Access denied for user 'cpanel1_thewatcher'@'localhost' (using password: YES)

DB_CONNECTION=mysql
DB_HOST=localhost
DB_PORT=3306
DB_DATABASE=dbnamehere
DB_USERNAME=cpanel1_thewatcher
DB_PASSWORD=passwordhere

SQLSTATE[HY000] [1130] Host 'xxx.xxx.xx.166' is not allowed to connect to this MariaDB server

SQLSTATE[HY000] [1045] Access denied for user 'cpanel1_thewatcher'@'server1.domain.com'

+-------------------+----------------------+
| User              | Host                 |
+-------------------+----------------------+
| root              | 127.0.0.1            |
| cpanel1            | xxx.xxx.xx.165       |
| cpanel1_thewatcher | xxx.xxx.xx.165       |
| root              | ::1                  |
| cpanel1            | localhost            |
| cpanel1_thewatcher | localhost            |
| nagios            | localhost            |
| root              | localhost            |
| cpanel1            | server1.domain.com |
| cpanel1_thewatcher | server1.domain.com |
| root              | server1.domain.com |
+-------------------+----------------------+