I've been having problems with the 8169 driver and RTL8111/8168B network
card as well. I'm not 100% sure if this is the same issue, but I suspect
it might be.

Anyway, the issue I was seeing was that the network card was properly
detected, but did not do proper link detection (no connection and no
lights were enabled on the switch). Some digging around turned out that
the r8169 driver does not properly turn on the PHY part of the network
card. Normally this is not a problem, except when it gets turned off.
This is a problem when running in dual boot with Windows, since the
windows driver turns off the PHY on shutdown (but only when Wake On LAN
is disabled, which was the default for me).

To respond to Leann, this might still be the same issue Blade II was
seeing, but it could be solved because perhaps Blade II stopped using
Windows? If not, then this is probably a seperate issue.

Just to help other users out: The workaround for the issue I describe is
to turn on wake on lan for the network card in Windows  (Device manager
-> Realtek NIC -> Properties -> Advanced -> Wake On Lan). The issue also
seems to have been addressed upstream already [1] (though I have not
tested this!). The fix I'm referring to fixes this issue specifically
for the B hardware version (AFAICS), there was already support for
enabling the PHY on some other hardware versions.

The fix I'm referring to is not yet present in 2.6.27, but is in 2.6.28,
so at least some issues regarding the r8169 driver will disappear when
Ubuntu upgrades to the .28 kernel (though perhaps the above bugfix could
be backported?).

[1]:
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6-stable.git;a=commit;h=a2de6b89

-- 
r8169 driver does not work with Realtek RTL8111C gigabit ethernet chip in 
Ubuntu 8.04 Hardy Heron
https://bugs.launchpad.net/bugs/212497
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