Hello everyone, I have done upgrade in the my squid from Version 2.6.STABLE21 to Version 3.1.10 After that it always pop-up authentication three times before allow that url. follow a example for www.bol.com.br url 1389621501.201 1 192.168.53.31 TCP_DENIED/407 3849 GET http://www.bol.com.br/ - NONE/- text/html 1389621501.213 2 192.168.53.31 TCP_DENIED/407 4148 GET http://www.bol.com.br/ - NONE/- text/html 1389621501.226 4 192.168.53.31 TCP_DENIED/407 4135 GET http://www.bol.com.br/ - NONE/- text/html 1389621532.660 2 192.168.53.31 TCP_DENIED/407 3947 GET http://www.bol.com.br/ - NONE/- text/html 1389621534.117 0 192.168.53.31 TCP_DENIED/407 3947 GET http://www.bol.com.br/ - NONE/- text/html 1389621535.165 98 192.168.53.31 TCP_DENIED/407 4148 GET http://www.bol.com.br/ - NONE/- text/html 1389621535.397 143 192.168.53.31 TCP_MISS/302 577 GET http://www.bol.com.br/ sa_mtmon DIRECT/200.147.35.224 text/html 1389621535.542 88 192.168.53.31 TCP_DENIED/407 4187 GET http://www.bol.uol.com.br/ - NONE/- text/html 1389621535.829 256 192.168.53.31 TCP_DENIED/407 4486 GET http://www.bol.uol.com.br/ - NONE/- text/html 1389621536.969 1129 192.168.53.31 TCP_MISS/200 35705 GET http://www.bol.uol.com.br/ sa_mtmon DIRECT/200.147.68.9 text/html I released with upgrade changed NTLM version too. before 3.6.6-0.136.el5 and now 3.6.9-167.el6_5 how to can I figure out that problem the pop-up authentication three times ? before upgrade it ask only one pop-up authentication. thanks