PMJI....I missed the earlier part of this thread, and am going mostly on the subject line. Has anyone checked to see if Explicit Congestion Notification (ECN) is enabled at the kernel level on the client machine? To check: cat /proc/sys/net/ipv4/tcp_ecn Zero means disabled, one means enabled. To disable: echo "1" > /proc/sys/net/ipv4/tcp_ecn (as root of course). E-mail me off-list if you need an explanation of what ECN is. Regards, Scott -- -----------------------+------------------------------------------------------ Scott Courtney | "I don't mind Microsoft making money. I mind them courtney@4th.com | having a bad operating system." -- Linus Torvalds http://www.4th.com/ | ("The Rebel Code," NY Times, 21 February 1999)