WPAD = Web Proxy Auto Detection (also know as PAC = Proxy Auto configuration)


If you wish the browser to auto-detect the WebTitan proxy settings you need to amend your DNS settings and configure a DNS record for WPAD e.g. You could add the following as a DNS A record


10.0.0.131 WPAD

Note: If setting up WPAD using DNS on a Windows Server you may need to remove wpad from the dns global black list. To check if it's on the blacklist from a command window on your Windows Server type: 

dnscmd /info /globalqueryblocklist 


To remove see:

http://technet.microsoft.com/en-us/library/ee649158%28WS.10%29.aspx



When you enable "Automatically detect settings" in your proxy settings (Control Panel >Internet Options >Connections > LAN Settings) your browser will perform a DNS query for wpad when it is opened.  If wpad can be resolved to an IP address your browser will connect to that IP and download a file called wpad.dat.  This file will contain the settings your browser needs to connect to and use WebTitan.


The WPAD  wizard is located in System Setup > Autoconfiguration.  You can also edit the WPAD file from there.


This site has excellent documentation on the various WPAD commands:


http://findproxyforurl.com/pac-functions/