Vista - Virtual PC 2007 disables the ability to Wake over LAN

Hello,

I've recently come across a problem where Wake on LAN (WoL) hasn't worked on
my Vista Ultimate X64 machine. After spending weeks troubleshooting and
researching, I came across one small post somewhere that mentioned Virtual PC
was causing the error.

I uninstalled Virtual PC and immediately following, WoL has worked,
flawlessly. I had kept the default settings, and it's possible that changing
them could resolve the issue. However, I've neither the time nor patience to
try different combination's. Regardless, I'd assume that this is an
undesirable side effect, no matter what the settings are.

Does anyone know of a fix to resolve this, and is there anyone from
Microsoft that can research this bug and possibly resolve it? Until I find a
solution, I'm afraid I can't use Virtual PC 2007.

I imagine that this is a characteristic of your LAN card or
motherboard.

If you enable the LAN card in VPC, VPC has to change
the configuration of your real LAN card to a debug mode
in order to capture the LAN traffic for the Virtual session.
Doing this tells the card not to analyse LAN traffic, which
makes it impossible for the card to recognise WoL packets,
and I imagine that this disables the WoL mode for the card.


There is unlikely to be anything VPC can do about the
behaviour of your LAN card or mother board.

Technically it should be possible to build a LAN card that
continues to analyse traffic for WoL packets when in promiscuous
mode, but I haven't seen that specified: it would not have been
a common requirement.

However, if you need a network connection for your VPC, you
can add a second LAN card to your host, and tell VPC to use
that, and not use the LAN card or motherboard where you need
WoL.

(david)



"Greg St. Louis" <Greg St. Louis@xxxxxx> wrote in message
news:6712111B-6A9B-4CF6-8722-20189A47A1AB@xxxxxx