Hi, I have squid setup that is currently doing transparent SSL interception. Almost all websites work flawlessly like https://facebook.com, gmail, banking websites etc. However, when intercepting SKYPE I've got the following error on my cache.log 2014/05/02 18:18:11 kid1| clientNegotiateSSL: Error negotiating SSL connection on FD 166: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number (1/-1) 2014/05/02 18:18:16 kid1| clientNegotiateSSL: Error negotiating SSL connection on FD 155: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number (1/-1) 2014/05/02 18:18:16 kid1| clientNegotiateSSL: Error negotiating SSL connection on FD 26: error:1408F10B:SSL routines:SSL3_GET_RECORD:wrong version number (1/-1) 2014/05/02 18:18:21 kid1| clientNegotiateSSL: Error negotiating SSL connection on FD 34: error:1408F10B:SSL My Setup: Our firewall only allows ports 80 and 443 and some business ports that's why Skype will always be redirected by our WCCP router to the squid box. My openssl version is OpenSSL 1.0.1e 11 Feb 2013 My squid version is 3.4. I also tried different Squid versions but failed. Any help will be greatly appreciated. Many Thanks, Jay