I had the same problem with a server serving as a proxy using hardy (8.04.2) and on my laptop using Jaunty (9.04), the same issue on both sides...
I solved it by using this in /etc/sysctl.conf: net.ipv4.tcp_wmem = 4096 16384 512000 net.ipv4.tcp_rmem = 4096 87380 512000 and afterwards, to make changes efective without restarting: sudo sysctl -p -- Network problem since kernel-2.6.17 https://bugs.launchpad.net/bugs/59331 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs