Problems joining a domain

Setting up a server in a school, there is already an existing domain, but we wanted to create a new domain in a new forest. Installation went fine, set up domain controller w\ active directory...Inputted all 60 users, then, when we try to add a computer to the domain (running xp) the following error message came up: "The following error occured attempting to join the domain "(domain name here)" : The network path was not found." I have never had this error before. I assigned the server a static ip, and i set that ip as the preferred dns server on the other computers...When i type in our domain name, the password dialogue does come up (if you just type in anything, the password dialogue doesn't come up at all) so i guess the computer is seeing it, and no matter if a type a correct or incorrect login, that message comes up...Any suggestions? I don't have access to the server this weekend, but my guess is I set something wrong with the DNS servers for the school itself...To get the information to enter in the TCP/IP config on the server, I went to a computer (gets ip info from dhcp server) went to cmd, ipconfig \all, and i put those addresses as secondary ip addresses on the server, obviously set the preffered address to this server on the server and on other computers when trying to get them to join the domain...Tried it on dift computers, too, so it's not just one computer...Any suggestions?
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ajschwAsked:
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ajschwAuthor Commented:
by the way, on the xp clients, or using remote desktop, i can't go \\servername, i have to type in the ip address...if this helps
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tmorrison3Commented:
Check and verify DNS is setup correctly - check the tcp/ip settings of nic on clients and what does an ipconfig /all say?
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ajschwAuthor Commented:
i unfortuantely cannot check it until monday, i had went to a pc that received its tcp/ip info from the dhcp server, to get the tcp/ip information for the server i used that, it had 3 dns servers, default gateway, subnet mask, i used all of that, except used an ip address that wouldn't be assigned by the dhcp server. (the technology coordinator of the school, who doesn't know that much about servers, just told me i could use anything that started with 10.204.0.x and just to ping it first to make sure it wasn't being used by any other printer or something...) but what i'm thinking of doing is having the tech coordinator log in to the school's dc and check its tcp/ip settings, and just use those...do you think that would work?
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ajschwAuthor Commented:
another question, if i do change the tcp/ip settings (by going thru network connections) do i have to uninstall then reinstall the dns role?
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Fatal_ExceptionSystems EngineerCommented:
This is definitely a DNS issue.  First, make sure your DNS is functioning properly on your new server (DC).  Ck the Forward Lookup Zone and see if it is populated correctly.  Then isolate that subnet from the rest of your network and try joining the domain.  (You don't want that PC getting any DCHP information from your original  You will need DHCP running also on that server, and it must be authorized for the domain.  This can be done on the DC or on a member server running DHCP.  

FE
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ajschwAuthor Commented:
thank you, i will give all of this a try on monday, and see how it goes...this may seem like a really dumb question, but i'm going to ask it anyway...(This is the first time i'm setting up a dc on a new domain on an already existing network with a different domain). How do I know what to set the subnet mask, dns servers, and default gateway to? the school gets its internet thru the county's proxy server. The client computers that i'm setting up a domain for used to be a workgroup, independent from the domain, but they still got their tcp/ip info from the dhcp server...when i set up this dc, i took the subnet mask default gateway from a computer receiving info from the existing dhcp...on the client computers, i left the ip address blank to still get it from the dhcp of the other server...but i set the other info on the clients, for the preferred dns server i set the ip for the server like i always do, and for seconday i typed the 3 already-existing dns servers...apparently, this is a problem. According to FE (comment above) i need to set up a DHCP role on the server, if i do this, i obviously set the preferred dns to the server still, but do i set for the secondary? Also, how do i tell the computer where to get its ip from? as soon as the computer is plugged into the network, it is assigned an ip by the already-existing dhcp...thanks, adam
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ajschwAuthor Commented:
or...could i just get away with assigning all of the client computers a static ip on the same subnet and default gateway i have the server set to? and just have primary dns set to the server, secondary's to the old one?
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ajschwAuthor Commented:
Another thing i just realized: i just checked out my server i have at home (i have it so i can play around with it to figure things out) and i realized the preferred dns is 127.0.0.1 (to my knowledge, that is just a loopback to the computer, right?) at the school server, i set the preffered dns to the actual ip address of the server, i doubt that would have anything to do with it, but i figured i'd throw it out there anyway...
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Fatal_ExceptionSystems EngineerCommented:
First, you NEVER use the Looback address on the domain controller and its DNS server.  Always use a static IP address, preconfigured in the TCP/IP properties.  I would correct this on your Home Test server so you can get the feel of the proper way to do this.

If this were me, I would configure a new subnet.  The 10.204.x.x is in a private range, but I would not use the same subnet that you are currently using.  If you do, isolate the entire subnet that you are creating until such time that you are ready to transfer all roles and add all clients to your new DC...

Then, setup a new DHCP server for your new clients.  If you have an extra server sitting around, use that.  If not, just setup DHCP server on the DC..  Let it handle your DHCP request packets when your clients join the domain..  Make sure you have authorized it on your DC..

FE
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Fatal_ExceptionSystems EngineerCommented:
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ajschwAuthor Commented:
thank you very much, i will try all of this on monday. That is interesting with the loopback address, considering that was the default on my home test server...(for some reason, i did the right thing and changed it on the other one.) do you think the problem was just everything was on the wrong subnet? I tried recreating the problem at home, and i couldn't...i've made it so it won't see it at all, but even if it is on the wrong subnet, although it takes longer, it still lets me add a computer to the domain. I (unfortunately) do not no too much about subnets...To create a new one, (i think just for it being easier, i'm going to assign all of the clients static ips on the local) can i just, when entering the tcp/ip info on the computers, choose any (valid entry) as long as the server and the clients are on the same subnet? how would this affect the default gateway? would i still set it to the original (at the school, the default was 10.204.1.1) for internet? once again, thank you very much, i really do not have much experience with this...i've only set servers up when they were the only ones on the network...thanks again, adam
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ajschwAuthor Commented:
(by the way, i have no access to the school's main server, that is controlled by the district, this is just to set up a new domain for a department)
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Fatal_ExceptionSystems EngineerCommented:
Setting a Static Address should work, and you can use the Default Gateway of the other network, as long as there is no router between you and the server that you are connecting to here.

Before you start adding machines, make sure you can ping the server you are trying to connect to, as this takes one of the problems out of the loop right away.

And I would still consider setting up a DHCP server...  This helps in many ways, but mostly I like the fact that it indicates there is something wrong with the network if you cannot get an IP address when the machine is logging on..  But you can do this later..

FE
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ajschwAuthor Commented:
once again, thank you very much, i will try setting it up monday, have a good weekend!
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Fatal_ExceptionSystems EngineerCommented:
Very good..  best of luck, but am sure we will be seeing you again in the future as other problems arise..  :)

and thanks..

FE
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