Vista - VM's can't ping

I've been trying to fix connectivity problems of VM's and still can't figure
it out. It could just be simple but nothing comes close to resolving it.
They all worked before. Here's my situation.

-I use virtual pc 2007 with 3 hosts; w2k3r2, windowsxp pro and windows2000
pro. Then installed Virtual Server SP1 hoping that it will resolve the
problem.
-They are connected to the LAN/internet using the host nic card. In the
office, i have a docking station and another nic attached to an external
internet for testing purposes. Both works before.
-All VM's are getting ip's from the router as dhcp, or from a dhcp server in
the office LAN. IP's and dns info acquired from DHCP are good.
-Problem: VM's cannot even ping the router or any other machine on the same
LAN.
What's done so far;
-unistall and reinstall virtual pc 2007. no go
-remove the nic card from the virtual machine device manager. after reboot
it reinstalls the nic card again. got an ip from dhcp but still no go.
-tried using Shared Networking NAT adapter and that works. other adaptes not
working.
-maybe my virtual pc is corrupted, so i installed virtual server sp1 and
that is also no go.
-the host has no problem connecting to the internet from office or from
home.

Sugesstions are welcome.

Thanks
Pete

On Sun, 2 Nov 2008 13:42:46 -0800, "Pete"
<pete@xxxxxx> wrote:
You say it works at the office. At home how are your VMs getting IP
addresses? Do you have a DHCP server, router, etc at home or are you
getting your IP directly from your ISP? If its the ISP then that's
likely the problem, most ISPs don't give you more than 1 IP.
Also, what NIC are you using at home, the same one as the office or a
different one? If it's a different one, you'd need to change that in
the VM's config so it's connected to an active NIC.

--
Cheers,
Steve Jain, Virtual Machine MVP
http://vpc.essjae.com/

Thanks Steve for your reply.

It does not work either home or office. All this works fine before.

The host is on wireless and my VM's work before with the wireless adapters.
And just to make sure, i did not use wireless at home to test but use the
integrated nic card on my laptop. In the office, i have a docking station
with integrated nic port. I also installed long time ago an optional pci nic
card on the docking station so i can use it for VM's access to different
networks. So wireless, wired different nics, home or office which used to
work are not working.

At home: all computers are getting non-routable ip from home router
In Office: getting ip from our internal dhcp server

Pete

"Steve Jain [MVP]" <noreply.-@-.essjae.com> wrote in message
news:5bhsg4lnmj5r9b3dlcepondh72p2qroqhg@xxxxxx