ISA Server uses the Web Proxy Automatic Discovery (WPAD) protocol, which allows automatic discovery of Web Proxy servers, and most of the time it works fine – but sometimes something goes wrong. Here’s a great blog post on how to troubleshoot WPAD issues.
Check it out at http://blogs.technet.com/b/sooraj-sec/archive/2011/07/07/wpad-is-working-or-not.aspx
DEBRA LITTLEJOHN SHINDER
MVP (Enterprise Security)
“MS SECURITY”
[email protected]