I still believe mine is a kernel issue, as per the information in this Ubuntu Forums thread: http://ubuntuforums.org/showthread.php?p=6128733
This machine runs inside of KVM but that should not make any difference as it works _perfectly_ with 2.6.24-21, leading me to believe this hasn't been completely resolved. To summarise, only changing the default kernel in menu.lst to 2.6.24-21 and rebooting makes the issue go away. I have tried: - empty firewall; only a masquerade rule - removing all QoS settings - clean install of Intrepid (64-bit) as the current was upgraded from Hardy - clean install of Intrepid (32-bit) - changing MTU and MSS clamping to lower sizes (1460 & 1420) - changed the type of network card from virtio to the default (rtl8139) I see 2.6.7-7.16 is out, but as that was just a security fix I didn't expect that would have resolved it. -- TCP option ordering in 2.6.27 is not interoperable with some network equipment https://bugs.launchpad.net/bugs/264019 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