Hi all, Ive run into this issue. When trying to access this site http://www.acp.pt I get an error message: Invalid Response error was encountered while trying to process the request: GET / HTTP/1.1 Host: www.acp.pt User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept-Language: en-us,en;q=0.5 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Proxy-Connection: keep-alive Cookie: OAID=85d42a4578c83aec5c49fcf529626d18; __utma=10858660.1732473768.1237559664.1237559664.1237559664.1; __utmz=10858660.1237559664.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none) Cache-Control: max-age=0 This has changed from a zero sized reply with 2.6 STABLE22 to the error Ive mentioned in 3.0-STABLE13 Checking the headers with wget, this is the response: wget --server-response http://www.acp.pt --2009-03-31 18:09:31-- http://www.acp.pt/ Resolving www.acp.pt... 85.88.134.195 Connecting to www.acp.pt|85.88.134.195|:80... connected. HTTP request sent, awaiting response... HTTP/1.1 200 OK Date: Tue, 31 Mar 2009 17:09:31 GMT Server: Apache X-Powered-By: PHP/5.1.6 Set-Cookie: PHPSESSID=vpdj646m74m8l03u8khru64fr1; path=/ Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Set-Cookie: OAID=b3427be14c171ba4c8a9ef4f6a4a718d; expires=Wed, 31-Mar-010 17:09:31 GMT; path=/ P3P: CP="CUR ADM OUR NOR STA NID" Connection: close Content-Type: text/html; charset=ISO-8859-1 Content-Language: pt Length: unspecified [text/html] This is the capture with wireshark: No. Time Source Destination Protocol Info 7562 44.471572 w.x.y.z 85.88.134.195 HTTP GET / HTTP/1.0 Frame 7562 (742 bytes on wire, 742 bytes captured) Ethernet II, Src: Micro-St_41:bf:60 (00:19:db:41:bf:60), Dst: Nortel_3a:00:43 (00:1c:17:3a:00:43) Internet Protocol, Src: w.x.y.z (w.x.y.z), Dst: 85.88.134.195 (85.88.134.195) Transmission Control Protocol, Src Port: 35965 (35965), Dst Port: http (80), Seq: 1, Ack: 1, Len: 676 Source port: 35965 (35965) Destination port: http (80) Sequence number: 1 (relative sequence number) [Next sequence number: 677 (relative sequence number)] Acknowledgement number: 1 (relative ack number) Header length: 32 bytes Flags: 0x18 (PSH, ACK) Window size: 5888 (scaled) Checksum: 0x7246 [correct] Options: (12 bytes) Hypertext Transfer Protocol GET / HTTP/1.0\r\n Host: www.acp.pt\r\n User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8\r\n Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n Accept-Language: en-us,en;q=0.5\r\n Accept-Encoding: gzip,deflate\r\n Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n Keep-Alive: 300\r\n Cookie: OAID=85d42a4578c83aec5c49fcf529626d18; __utma=10858660.1732473768.1237559664.1237559664.1237559664.1; __utmz=10858660.1237559664.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none)\r\n Via: 1.1 bruno-guerreiro.dsii.ine.pt (squid/3.0.STABLE13)\r\n X-Forwarded-For: a.b.c.d\r\n Cache-Control: max-age=259200\r\n Connection: keep-alive\r\n \r\n No. Time Source Destination Protocol Info 7596 44.618841 w.x.y.z 85.88.134.195 HTTP GET / HTTP/1.0 Frame 7596 (742 bytes on wire, 742 bytes captured) Ethernet II, Src: Micro-St_41:bf:60 (00:19:db:41:bf:60), Dst: Nortel_3a:00:43 (00:1c:17:3a:00:43) Internet Protocol, Src: w.x.y.z (w.x.y.z), Dst: 85.88.134.195 (85.88.134.195) Transmission Control Protocol, Src Port: 36135 (36135), Dst Port: http (80), Seq: 1, Ack: 1, Len: 676 Source port: 36135 (36135) Destination port: http (80) Sequence number: 1 (relative sequence number) [Next sequence number: 677 (relative sequence number)] Acknowledgement number: 1 (relative ack number) Header length: 32 bytes Flags: 0x18 (PSH, ACK) Window size: 5888 (scaled) Checksum: 0xb54e [correct] Options: (12 bytes) Hypertext Transfer Protocol GET / HTTP/1.0\r\n Host: www.acp.pt\r\n User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8\r\n Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n Accept-Language: en-us,en;q=0.5\r\n Accept-Encoding: gzip,deflate\r\n Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n Keep-Alive: 300\r\n Cookie: OAID=85d42a4578c83aec5c49fcf529626d18; __utma=10858660.1732473768.1237559664.1237559664.1237559664.1; __utmz=10858660.1237559664.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none)\r\n Via: 1.1 bruno-guerreiro.dsii.ine.pt (squid/3.0.STABLE13)\r\n X-Forwarded-For: a.b.c.d\r\n Cache-Control: max-age=259200\r\n Connection: keep-alive\r\n \r\n No. Time Source Destination Protocol Info 7605 44.717636 w.x.y.z 85.88.134.195 HTTP GET / HTTP/1.0 Frame 7605 (742 bytes on wire, 742 bytes captured) Ethernet II, Src: Micro-St_41:bf:60 (00:19:db:41:bf:60), Dst: Nortel_3a:00:43 (00:1c:17:3a:00:43) Internet Protocol, Src: w.x.y.z (w.x.y.z), Dst: 85.88.134.195 (85.88.134.195) Transmission Control Protocol, Src Port: 48200 (48200), Dst Port: http (80), Seq: 1, Ack: 1, Len: 676 Source port: 48200 (48200) Destination port: http (80) Sequence number: 1 (relative sequence number) [Next sequence number: 677 (relative sequence number)] Acknowledgement number: 1 (relative ack number) Header length: 32 bytes Flags: 0x18 (PSH, ACK) Window size: 5888 (scaled) Checksum: 0x4c17 [correct] Options: (12 bytes) Hypertext Transfer Protocol GET / HTTP/1.0\r\n Host: www.acp.pt\r\n User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8\r\n Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n Accept-Language: en-us,en;q=0.5\r\n Accept-Encoding: gzip,deflate\r\n Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n Keep-Alive: 300\r\n Cookie: OAID=85d42a4578c83aec5c49fcf529626d18; __utma=10858660.1732473768.1237559664.1237559664.1237559664.1; __utmz=10858660.1237559664.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none)\r\n Via: 1.1 bruno-guerreiro.dsii.ine.pt (squid/3.0.STABLE13)\r\n X-Forwarded-For: a.b.c.d\r\n Cache-Control: max-age=259200\r\n Connection: keep-alive\r\n \r\n Any ideas? Bruno Guerreiro Instituto Nacional de Estatística DMSI Departamento de Metodologia e Sistemas de Informação Tel: +351 21 842 61 00