Domain error

10 pts.
Tags:
Active Directory
DHCP
DNS
Networking
Networking services
We have three new computers at work. I was able to get them hooked up to the network and they can access mapped drives and the internet. When they login - they aren't logging into the domain - just the local computer. I need to set them up as domains and it won't let me. it says... something about cannot add a user or shared resource with the same name blah blah blah... Also, it says a domain controller with domain name cannot be contacted. HELP! I go to computer name part and try and add it as a domain and it won't let me. Any ideas?
ASKED: August 24, 2005  7:15 PM
UPDATED: August 30, 2005  2:26 PM

Answer Wiki

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Do the workstations have unique names / ipaddresses ?
If there is any existing computer accounts in AD, try deleting these and then rejoining the domain.

Seeing these are 3 new PC’s likely all setup at the same time and with the same settings, there is a PC configuration issue.

You havnt specified any info about your OS/ DCOS or network environment, but check that you are entering your network credentials correctly.

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  • Jade0571
    No there isn't a unique computer name - I set them up with the computer names they had before... though today i did rename a computer with something else but not sure i did it right. I believe the computers have an IP but I don't know for sure - how do i check and how does this help? The new comps are Windows xp pro and the server is Windows 2000 server. I have checked the new computer info (computer and user) in Active directory against existing accounts and all seems fine. Hope this helps and you can help me some more. I will try deleting the computer accounts and recreating them - though that makes me nervous. :)
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  • HatcherBob
    Are you using an administrative account from the server to join the domain? What kind of erros are you getting. Don't have a lot to work on.
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  • Jade0571
    The error messages on the computers I am trying to add to the domain are: A domain controller on the domain ..... could not be contacted. Another error - more common than first is "multiple connections to a server or shared resource by the same user are not allowed" I would really appreciate your help. I am under the crunch to get this fixed. If you need any more information just ask... I'll do whatever I have to.
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  • Wmorrison
    Is you Win 2000 server acting as your DHCP server? If so, you will not have to give your new PC's an IP address, your Server will assign them. Give each new PC a unique name. I'm sure you know this but, plug your new PC into the network, right click on the My computer Icon and then Properties. Click on Computer Name tab. Here you will put in the unique name in the Computer name box. Check the Domain: button under Member of and fill in your domain name. Then hit the okay button. A box should pop up asking for credentials. Here you will put in the Administrator name and password, this will join the computer on the Domain. If you need to assign an IP address to the PC, here is what you need to do. Go to Start, Control panel. Then click on Network and Internet Connections. Then Network Connections. Here you should have a Local Area Connection icon. Right click, Properties. On General tab, Highlight Internet Protocol (TCP/IP), then hit the properties button. Check "Use the following IP Address. Fill in the fields. Fill in the fields for the DNS Server addresses also if you know it. Hit okay to save. The try to join the domain. Hope this helps. WM
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  • Astronomer
    From your information it seems you had three boxes with the same name and you replaced them with these new boxes. Is this correct? If so, you now have systems with the same name as the old boxes but with new SIDs. Active directory keeps track of the system name and SID. This would explain not being able to connect to the domain with the new systems. To fix this you need to delete the domain entries with the old SID and join the domain with the new systems. Resetting the objects and rejoining may accomplish the same thing but I haven't tried it. rt
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  • Astronomer
    From your information it seems you had three boxes with the same name and you replaced them with these new boxes. Is this correct? If so, you now have systems with the same name as the old boxes but with new SIDs. Active directory keeps track of the system name and SID. This would explain not being able to connect to the domain with the new systems. To fix this you need to delete the domain entries with the old SID and join the domain with the new systems. Resetting the objects and rejoining may accomplish the same thing but I haven't tried it. rt
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  • Sonyfreek
    Need more feedback. Log onto the computers, click on the start menu and then Run. Type cmd and click Ok. Type ipconfig /all and verify that the IP Address is different for each computer. If not, that's your problem. Also verify that the default gateway is correct (you can type "ping 10.0.1.1" if your Default gateway is 10.0.1.1 in the listing to test it). Change IP information in Start/Control Panel/Network Connections. I don't think this is your problem because you are not getting error messages about duplicate IP Addresses. Type hostname. All hostnames should be unique on the network. If they are not, change them in Start/Control Panel/Network Connections and by clicking on Advanced/Network Identification... I don't think this is your problem because you are not getting problems with duplicate machine names. Type net use. If the listing is not blank before you add them to the domain, type net use * /d /y. This will elimiate the shared resource error because you are trying to log on the domain with a different username that you are connected to the shares with. I think this is your problem. If this doesn't point you to the problem, check the Event Log (Start/Program Files/Administrative Tools/Event Viewer (or through control panel). Check for error messages on both the client and the server. Clients and Servers don't consolidate logs, so the problem might show up on one of the logs and not the other. Check strange Event logs at www.eventid.net and try to resolve the problem that way. Hope this helps, SF I think your problem is that you are using the network in a peer-to-peer environment and
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  • Jpdavey
    Try this: Remove each from the domain - meaning you'll put them into a workgroup. Reboot. Rename the computers to something you haven't tried yet. Reboot. Add them back to the domain. Reboot. Make sure the new names are now in AD. Make sure the old names aren't - delete if they are. Rename the computers back to the old names, if you wish. Reboot.
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