Invalid handle returned - Laravel connection with SQL Server

I was developing an application with Laravel 5.5 with a Mysql database. Everything was working normally, however, now the database has been modified to SQL Server.

When I run the test, it returns the error "Invalid handle returned."

• Searching, I saw that it could be the version of my php, so I changed the same, I was using 7.1 and now I'm in 7.0.23
• All drivers (including pdo_sqlsvr) are downloaded and set correctly (php.ini and ext folder)
• Microsoft ODBC installed
• All sql server firewall rules are configured and released

My .env file is set as follows:

APP_NAME=Incorptech
APP_ENV=local
APP_KEY=[key da aplicação está ok]
APP_DEBUG=true
APP_LOG_LEVEL=debug
APP_URL=http://localhost

DB_CONNECTION=sqlsrv
DB_HOST=[host está ok]
DB_PORT=1433
DB_DATABASE=[nome do banco]
DB_USERNAME=[usuario do banco]
DB_PASSWORD=[senha do banco]

database.php has the following settings:

'default' => env('DB_CONNECTION', 'sqlsrv'),
  'sqlsrv' => [
  'driver' => 'sqlsrv',
  'host' => env('DB_HOST', 'localhost'),
  'port' => env('DB_PORT', '1433'),
  'database' => env('DB_DATABASE', 'nomedobanco'),
  'username' => env('DB_USERNAME', 'usuario'),
  'password' => env('DB_PASSWORD', 'senha'),
  'charset' => 'utf8',
  'prefix' => '',
],

The function that I am performing the test and that this error is returning, is as follows:

public function testeDB() {
  $select = DB::select('select * from conta');
  return $select;
}    

At the artisan command prompt, the following error appears:

  

PHP Fatal error: Invalid handle returned in   ... vendor \ laravel \ framework \ src \ Illuminate \ Database \ Connectors \ Connector.php   online 67

The function of line 67 of the error above (this function is the laravel itself), in the file \Connectors\Connector.php is as follows:

protected function createPdoConnection($dsn, $username, $password, 
    $options) {
  if (class_exists(PDOConnection::class) && ! $this->isPersistentConnection($options)) {
    return new PDOConnection($dsn, $username, $password, $options);
  }
  return new PDO($dsn, $username, $password, $options);
}

I started to develop in Laravel soon, is there anything else to be created for this connection to SQL Server to be successful?