Both lspci reports list the chipset as RTL8111/8168B. This is a relatively new chipset, and support for it was only added in 2.6.19.
The temporary solution appears to be to disable TSO by default for RTL111/8168B in the driver. -- network device, module r8169, fails after some minutes https://launchpad.net/bugs/76489 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
