Replaced NIC - Domain GONE!!!

tdantona
tdantona used Ask the Experts™
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Yesterday, we had a NIC card failure on our PDC which is also a web server. I uninstalled the bad NIC, shut down the server and rebooted it to complete the uninstall. I then shut it down again and installed the new NIC card > rebooted > configured and was back in the web hosting business.

Unfortunately my domain information has disappeared (because there was no NIC installed at one point??) Attempts to open Active Directory Users and Computers on the server returns the error message:
===
Naming information can not be located because:
The specified domain either does not exist or could not be contacted. Contact system admin...bla...bla...bla.
===

You can then see the Active Directory Window but there are no accounts listed at all.

Thanks in advance for the help and for sharing your wisdom!

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tdantonaTechnical Service Manager

Author

Commented:
As a follow up, I am really just looking to re-establish the (a) domain. There were only a handful of accounts so creating them again would be no problem. i just see no way to do that since when I go into MY COMPUTER > PROPOERTIES > NETWORK IDENTIFICATION
tdantonaTechnical Service Manager

Author

Commented:
As a follow up, I am really just looking to re-establish the (a) domain. There were only a handful of accounts so creating them again would be no problem. i just see no way to do that since when I go into MY COMPUTER > PROPOERTIES > NETWORK IDENTIFICATION it indicates that the domain does exist and that this machine is the PDC.

Commented:
Hello tdantona,
Do you have a current system state backup? Restore it.. If you do not... Repair the installation with the source media..

From my experience not having a Nic installed has some  very bad effects because of how services bind to such a device..Not having client for M$ Networks bound to a Nic on a DC is devistatingly bad.. If your DC has been booted into windows with no NIc & no Client for Ms Networks there is no easy fix.
-M$ recommend installing MS Loopback adaptor if your Nt based system has no NIC installed.

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tdantonaTechnical Service Manager

Author

Commented:
Not sure I followed that though I do understand why this has occurred, DOH!

As a note, I DID have the MS Loopback Adapter installed at all times which included Client for MS Networks...?

At any rate here we are and if I follow you correctly you are suggesting I install Windows 2000 Server again in Repair mode. Is that correct? There are no meaningful system backups.

Thanks!
tdantonaTechnical Service Manager

Author

Commented:
Not sure I followed that though I do understand why this has occurred, DOH!

As a note, I DID have the MS Loopback Adapter installed at all times which included Client for MS Networks...?

At any rate here we are and if I follow you correctly you are suggesting I install Windows 2000 Server again in Repair mode. Is that correct? There are no meaningful system backups.

Thanks!

Commented:
Hello tdantona,
-That is in fact what I am saying..
-You should use NTbackup and schedule even a weekly backup of the system state to a network file location.. With a system state backup you could have been back up within 20 mins..
-Boot with the CD & choose to repair your current installation.. That might just do it, but of course there is no garanteee... It simply is the best first recourse measure..


Commented:
tdantona, you say there is no system state backup available, but is there a good backup of your system partition available?  You may still have a chance if a C drive backup exists (athough it is a harsh/last resort way to go), but a bare metal restore of your C drive may get you back.  Put the bad nic back in the system, restore the system partition, add a nic before removing the bad one.  If you don't have the backup of the sys partition, good luck with the sys repair...
jb
tdantonaTechnical Service Manager

Author

Commented:
OK, that last one really DOES sound like a last resort so I think I'll hold off for now. Things are still functional so I'm not sweating bullets yet.

But here's some interesting tings i have found while trying to follow Housenet's repair advice:
The system does not seem to recognize the CDRom is bootable. No prompt/no nothing...strange, has always worked before.

So, I rebooted which took a L-O-N-G time and logged in. AS A MEMBER OF THE DOMAIN with no problem. But the same symptoms are still there as far as the Active Directory manager is concerned and I am still unable to Join a WS to the domain. HOWEVER, as a work around, i used IIS to give me browse access to some files and am able to use Windows Authentication to log into the URL. So the server is still aware of the domain and the accounts, they just aren’t passing through to Active Directory manager and i cant join or log into the domain.

Any new thoughts?

Commented:
Hello tdantona,
-Make sure the new nic's tcp-ip dns settings point to the ad-dns server.
-Check your bios settings & make sure Cdrom is set as fisrt boot device..
tdantonaTechnical Service Manager

Author

Commented:
Yep, already had double and tripple checked both but thanks.

It's strange, the domain DOES exist and the accounts are still usable at the server level (as reviewed above.) You just can't manage them or join the domain......sigh.
omk

Commented:
Disconnect PDC from network unplugging cable.
Insert bad NIC into server again without removing the new one.
Ignore warning messageswhen rebooting.
Delete local connection for this bad card.
Check configuration of the new one, it may be disabled.
Shutdown, remove old NIC, plug network cable,turn PC on.
All this can be done without inserting card, just editing registry, deleting information for the old card.
tdantonaTechnical Service Manager

Author

Commented:
I'm back up and running - I'm afraid it was something far more straight forward than what we reviewed here:

I did not have the Net Logon Service running so my workstation was not able to rejoin the network - I have now reset the Net Logon for Automatic Startup. Also, I went into the Active Directory Manager and right clicked on Active Directory users and computers at the top, then selected connect to controller - typed in my server name and the accounts appeared!!

Thanks for all of the good input regarding possibilities. I don't suppose I should be rewarding anybody points for this one though, agree??

Let me know, as I'm happy to do whatever is agreed proper in this situation.
tdantonaTechnical Service Manager

Author

Commented:
I'm back up and running - I'm afraid it was something far more straight forward than what we reviewed here:

I did not have the Net Logon Service running so my workstation was not able to rejoin the network - I have now reset the Net Logon for Automatic Startup. Also, I went into the Active Directory Manager and right clicked on Active Directory users and computers at the top, then selected connect to controller - typed in my server name and the accounts appeared!!

Thanks for all of the good input regarding possibilities. I don't suppose I should be rewarding anybody points for this one though, agree??

Let me know, as I'm happy to do whatever is agreed proper in this situation.
tdantonaTechnical Service Manager

Author

Commented:
Darn! Gotta stop refreshing this page after saving a new entry...Of course it shouldn't function that way but....
tdantonaTechnical Service Manager

Author

Commented:
Anybody want to give me input on what I should do with the point on this question? Not sure how to just kill it and am happy to split the award for your input if that's possible.

RSVP, Tom
tdantonaTechnical Service Manager

Author

Commented:
Posted this question in community support for deletion or recommended action.
Points refunded and placed in PAQ

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