Have you specified https_port 443 ... cert= http://www.squid-cache.org/Versions/v2/2.7/cfgman/https_port.html Regards, Andrew -----Original Message----- From: Mike Muir [mailto:mmuir@xxxxxxxxxxxxx] Sent: Tuesday, October 16, 2012 3:41 PM To: squid-users@xxxxxxxxxxxxxxx Subject: TCP_DENIED/403 Hello, I'm getting a TCP DENIED/403 in the access log when trying to access all HTTPS sites via web browser. The browser displays: Error 111 (net::ERR_TUNNEL_CONNECTION_FAILED): Unknown error. I've included the following in my squid.conf (I'm using Squid 2.7) which to my understanding should allow traffic on 443: acl SSL_ports port 443 acl CONNECT method CONNECT http_access deny CONNECT !SSL_ports I'll provide more info if necessary, but has anyone experienced this problem before? Any help would be appreciated. Regards