Failing HTTP session: reading from file tcpdump.66.159.197.88, link-type EN10MB (Ethernet) 22:04:14.918583 IP mea.h.zmailer.org.38866 > adsl-66-159-197-88.dslextreme.com.http: S 2237082680:2237082680(0) win 5840 <mss 1460,sackOK,timestamp 97530101 0,nop,wscale 7> 22:04:15.123841 IP adsl-66-159-197-88.dslextreme.com.http > mea.h.zmailer.org.38866: S 1005477281:1005477281(0) ack 2237082681 win 5792 <mss 1460,sackOK,timestamp 2175895186 97530101,nop,wscale 0> 22:04:15.123981 IP mea.h.zmailer.org.38866 > adsl-66-159-197-88.dslextreme.com.http: . ack 1 win 46 <nop,nop,timestamp 97530307 2175895186> 22:04:15.124254 IP mea.h.zmailer.org.38866 > adsl-66-159-197-88.dslextreme.com.http: P 1:472(471) ack 1 win 46 <nop,nop,timestamp 97530307 2175895186> 22:04:15.348670 IP adsl-66-159-197-88.dslextreme.com.http > mea.h.zmailer.org.38866: . ack 472 win 6432 <nop,nop,timestamp 2175895209 97530307> Collection stopped after 60 seconds, or so. The same target is perfectly reachable with echo 0 > /proc/sys/net/ipv4/tcp_window_scaling (nominal URL: http://n1vg.net/ ) The kernel in my workstation is running Fedora Core development branch 2.6.8-1.532smp. DaveM ? Alexey ? /Matti Aarnio - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html