Thread:Project:Support desk/ldap connect not working

I'm using mediawiki with IIS 8.5 on Microsoft Server 2012 R2. (PHP 5.5). I'm using Windows NTLM LDAP Auto Auth Extension and the code is passing over the ldap_connect command (I set it to the default port :389) As far as I can tell, no exception is thrown or any network packet is sent. Am I missing anything?