I've got a site that is using an Execute URL in the 403.4 error page slot that calls a page named forcessl.aspx. Here's the contents of the file: strWork = Replace(strQUERY_STRING, "http", "https") strWork = Replace(strWork, "403;", "") strWork = Replace(strWork, "80", "") strSecureURL = strWork Response.Write(strSecureURL) Response.Redirect(strSecureURL) Catch ex As Exception End Try End If % This particular site gets a 401.1 error if https:// is not added to the url. I have several other sites using the same method that work fine and this one mirrors those in all ways that I can tell (folder permissions, etc). This new site is just a subdomain of the same domain that the other sites are using. The main domain has a wildcard SSL cert. What else should I check?