Kernel Regression in Intrepid

A regression was discovered in Linux kernel version 2.6.27 packages.

Details about Linux kernel regression

Version 2.6.27 of the Linux kernel changed the order of options in TCP headers. While this change was RFC-compliant, it was found that some old routers and consumer DSL modems would not route traffic for these systems when TCP timestamps were enabled. As a workaround, TCP timestamps were disabled via sysctl.

Solution

The problem can be corrected by upgrading your system to the following package versions:

Ubuntu 8.10:

linux-image-2.6.27-7-generic 2.6.27-7.15
linux-image-2.6.27-7-server 2.6.27-7.15
linux-image-2.6.27-7-virtual 2.6.27-7.15
procps 1:3.2.7-9ubuntu2.1

To upgrade:

sudo aptitude update

sudo aptitude dist-upgrade

After a standard system upgrade you need to reboot your computer to effect the necessary changes.

From the Ubuntugeek website.  Thank you guys!