Win2k server won't start after setting IP do static

I have a Win2k server, a router to connect to the Internet, and around 60 Win2k pro clients.
All the clients login to the server.
The server had dynamic IP and I changed it to static (Network -> Proprerties -> LAN -> Properties -> TCP/IP -> IP Address).
I restarted the server and now it won't start.
It stays on forever "Restoring network connections" or something like this. For hours.
I tried to start in safe mode with network and it's the same.
Safe mode without network won't let me change the IP back to dynamic.
Last known good configuration it's the same.
Any ideas on how to solve this and why this happened?
I even unplugged the network cable.
I guess the router is the DHCP server, but I'm not sure...

I'd like to set the server IP statically because it's a lot faster for the clients to log in (I set the DNS server on the clients to that IP).
Is this correct?

Who is Participating?
Pete LongConnect With a Mentor Technical ConsultantCommented:

if your subnet is that is NOT a valid host address, its the broadcast address for the network :0)

Have you tried just removing your NIC and booting the server, - when the HW is missing, it usually comes up and you can remove the (faulty?) NIC config
Pete LongTechnical ConsultantCommented:
Hi svenkarlsen,
How to Perform an In-Place Upgrade of Windows 2000;en-us;292175

Repairing, Recovering, and Restoring an Installation of Windows 2000;en-us;268106

Differences Between Manual and Fast Repair in Windows;en-us;238359

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sorry, but I don't understand your msg.
Pete LongTechnical ConsultantCommented:
?? Which bit ??

performing an in place upgrade from CD will allow the poster to reconfigure their IP stack and leave their programs/data safe

Thank-you Pete,

I agree that your suggestion will most probably solve the problem.

my suggestion was aimed at doing a fast attempt as last resort before doing the pen-ultimate (i.e. in-place-upgrade is last attempt before re-install).

If poster decides on in-place-upgrade my only comment is: be very alert, - if the upgrade does not detect an existing installation, don't continue as this will cause an overwrite of the installation.

Pete LongTechnical ConsultantCommented:
I concur!

Also reinstall the latest service pack when you are done!

Pete :0)
Rob StoneCommented:
What about going into safe mode without networking and disable the network card, then try and launch normal windows and if you get in re-enable it and try changing back to DHCP.
Rob StoneCommented:
Sorry, disable the card through device manager.
pedropiedadeAuthor Commented:
I already solved it.
It took 1 full day to restart...

I'd just like to know the reason... the IP I used was
Taake a look at this:

His situation was quite similar to yours.

Kind regards,
Pete LongTechnical ConsultantCommented:
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