Sounds like a ssl certificate is missing from a certificate store. ------Original Message------ From: hallelujah To: squid-users@xxxxxxxxxxxxxxx Subject: HTTPS And NTLM authenticate error Sent: Sep 25, 2010 5:22 AM hi, when i using squid to login to iis server, which integrated with windows authentication, squid will got error "fwdNegotiateSSL: Error negotiating SSL connection on FD 10: error:00000000:lib(0):func(0):reason(0) (5/0/0)" I have no idea about this. Sent via BlackBerry by AT&T