Thanks for the response. The Win32::netAdmin module basically verifies given the user id if he is part of a group who can access the site. My site is on a corporate intranet and needs to be authenticated via sso with no prompting for user id or password. The LWP::UserAgent module does seem to need the credentials aka the 'password' for the user to be authenticated I believe as far as I read through the documentation and in the http://www.ietf.org/rfc/rfc2617.txt http authentication methods .
Bringing back to my original issue, I am just trying to capture the erratic 'Page cannot be displayed ' error here and tryin to figure out what is triggering it. Any experience with such a situation anyone? I am glad we have explored the known options so far. Appreciate any good advice.