Problems with Step 2 Configuration

Hi,
I’m having problems with step 2 of installing SuiteCRM 7 on Windows Server 2016

when i click next i get the error * The provided database host, username, and/or password is invalid, and a connection to the database could not be established. Please enter a valid host, username and password

im using the default user name password and a working emailadress

Help would be appreciated
Benjamin,