Here's that part on my dash.json @UdjinM6 :
"mposMode": {
"enabled": true,
"host": "127.0.0.1",
"port": 3306,
"user": "root",
"password": "mypassword",
"database": "dashcoinpool",
"checkPassword": true,
"autoCreateWorker": false
}
Is the port correct for dash coin?