Login failed for user 'SQLAdminUser'

<login_information><error_code>18456</error_code><error_state>113</error_state></login_information>

$sqlConnection = New-Object System.Data.SqlClient.SqlConnection  "Server=tcp:lyftue1prd-sql1.database.windows.net,1433;Initial Catalog=SitesEE;Persist Security Info=False;User ID=SQLAdminUser;Password=[password]"
$sqlConnection.Open()

Exception calling "Open" with "0" argument(s): "Login failed for user 'lyftue1prdSQLAdmin'."