100 [appliance](checkforupdate) 387: Document access forbidden: http://update.thunderstone.com/texis/ad ... n/main.txt returned code 403 (Forbidden ( The ISA Server denied the specified Uniform Resource Locator (URL). ))
The Appliance does not currently support NTLM proxies, only Basic Auth proxies (though it does support NTLM direct crawling). We should be able to add NTLM proxy support sometime early this quarter, though of course you'll still need direct (or Basic-Auth proxy) access to obtain updates through that time (or obtain a CD from us).