Codeigniter 2.0.3 with SQL Server Active Record - sql-server

Question

I'm working on upgrading a Codeigniter app I have running on 1.7.2 to 2.0.3 but I'm not able to connect to SQL Server . Both versions are running on the same server running php 5.2.10 and connecting to the same SQL Server.
This is the error from CI 2.0.3
Unable to connect to your database server using the provided settings.
Filename: core/Loader.php
Line Number: 260
This is the connection string I'm using which of course works on 1.7.2
$db['reports']['hostname'] = "mysqlserver";
$db['reports']['username'] = "sqluser";
$db['reports']['password'] = "sqlpass";
$db['reports']['database'] = "SQLReportDB";
$db['reports']['dbdriver'] = "mssql";
$db['reports']['dbprefix'] = "";
$db['reports']['pconnect'] = TRUE;
$db['reports']['db_debug'] = TRUE;
$db['reports']['cache_on'] = FALSE;
$db['reports']['cachedir'] = "";
$db['reports']['port'] = 972;
In the controller I call the connection with this
$report_db = $this->load->database('reports', TRUE);
Below is the function in the loader file where it reports the failure.
Line 260 is return DB($params, $active_record);
/**
* Database Loader
*
* #param string the DB credentials
* #param bool whether to return the DB object
* #param bool whether to enable active record (this allows us to override the config setting)
* #return object
*/
public function database($params = '', $return = FALSE, $active_record = NULL)
{
// Grab the super object
$CI =& get_instance();
// Do we even need to load the database class?
if (class_exists('CI_DB') AND $return == FALSE AND $active_record == NULL AND isset($CI->db) AND is_object($CI->db))
{
return FALSE;
}
require_once(BASEPATH.'database/DB.php');
if ($return === TRUE)
{
return DB($params, $active_record);
}
// Initialize the db variable. Needed to prevent
// reference errors with some configurations
$CI->db = '';
// Load the DB class
$CI->db =& DB($params, $active_record);
}

Answer 1

Here are some settings I use in connecting to a SQL Server you haven't listed. Might be required due to upgrade...
$db['default']['char_set'] = 'utf8';
$db['default']['dbcollat'] = 'utf8_general_ci';
$db['default']['swap_pre'] = '';
$db['default']['autoinit'] = TRUE;
$db['default']['stricton'] = FALSE;

Answer 2

$db['reports']['port'] is no longer valid
The port needs to be added to the end of the server
$db['reports']['hostname'] = "mysqlserver:972";