Help connecting my Workgroup to my 2003 Server R2 Domain

I have a HP Proliant Server with Microsoft Server 2003 R2 on which I have set up a domain. I also have a laptop with Windows XP Pro and another with Windows Vista Business. The two laptops are part of a home network workgroup names "MSHOME". All three computers are hardwired by ethernet cable into the same Verizon FIOS router. I would like to join all three computers (and eventually other and printers, etc) into the same network. Can somebody please point me to a tutorial that will instruct me on how to either joing the workgroup to the domain or remove the individual computers from the workgroup and add them to the domain. Thank you.
bpfsrAsked:
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hunartCommented:
Right Click on My Computer > Properties > Computer Name > Change > Domain.  This will allow you to join the Domain.  You must have administrative member to do this.
bhartwellCommented:
this is a guided tutorial with pictures for adding a vista machine to the domain. But basically they are the same steps hunart provided above just with pictures.

http://www.groovypost.com/howto/microsoft/vista/join-windows-vista-to-active-directory-domain/

bpfsrAuthor Commented:
I've tried that; I keep getting an error message "A domain the with domain name cannot be contacted..."
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bhartwellCommented:
Can the laptops "Ping" the Active Directory server at all? Make sure on those systems you wish to add to the domain, their DNS should point to the Domain Controller. so if the HP Proliant server has an IP address of 192.168.1.1 then thats what the DNS should be of your systems you are trying to add to the domain. try that and let us know.
kevinhsiehCommented:
Sounds like a DNS issue. Your laptop probably needs to be DHCP. If you can specify the DNS server in the DHCP server settings on you FIOS router make the DNS server change there. Otherwise you need to configure DHCP on your server and then turn DHCP off on your router.
hunartCommented:
Can you go to command prompt and run the ipconfig /all command and post the output here.  We need to check your Default Gateway and DNS info.

bpfsrAuthor Commented:
Okay - for the computer I am trying to connect to the domain - call it laptop1 - I have:

Ethernet adapter Local Area Connection:

Connection-Specific DNS Suffix . : home
IP Address : 192.168.1.4
Subnet Mask : 255.255.255.0
Default Gateway : 192.168.1.1

Ethernet adapter Wireless Network Connection:

Connection-Specific DNS Suffix . : home
IP Address : 192.168.1.6
Subnet Mask : 255.255.255.0
Default Gateway : 192.168.1.1

For the server I have:

Ethernet adapter Local Area Connection:

Connection-Specific DNS Suffix . : home
IP Address : 192.168.1.5
Subnet Mask : 255.255.255.0
Default Gateway : 192.168.1.1

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bhartwellCommented:
Where is the DNS info?
bpfsrAuthor Commented:
Sorry - Laptop1

DNS Servers - 192.168.1.1
71.250.0.12

Server is the same

bhartwellCommented:
The active directory server should be your DNS server. try pointing the laptops dns to 192.168.1.5 as the primary and 192.168.1.1 as the secondary and see if that allows you to add it to the domain.
bpfsrAuthor Commented:
Sorry, I get the same error messages...
bhartwellCommented:
if you go to a command prompt and type in nslookup what is the result?
bpfsrAuthor Commented:
here is the screenshot
experts-ex.JPG
bpfsrAuthor Commented:
After doing it the first time I realized my wireless connection was open; I disable it and am now connected only by the ethernet
bhartwellCommented:
in command prompt do ipconfig /flushdns then try to rejoin domain on laptop.
kevinhsiehCommented:
You are still using your router as the DNS server. You are really going to need to setup DHCP on your server for your long term sanity.

http://www.windowsnetworking.com/articles_tutorials/DHCP_Server_Windows_2003.html

The IP range would be 192.168.1.100-192.168.1.130
subnet mask 255.255.255.0
gateway 192.168.1.1
DNS server: IP address of your Windows 2003 server

Turn off DHCP on your router.

run ipconfig /release; ipconfig /renew on your computers and try to joing the domain again.
If you run "ipconfig /all", you should see the IP address of your server as the DHCP server, and the correct DNS server.
bpfsrAuthor Commented:
I had a long conversation with Verizon last night about turning off DHCP on my router and they are telling me I can't do it. They are saying the only way I can accomplish networking these computers is by adding a second router, configuring the second router for the server and then building a bridge.
hunartCommented:
I can see the problem now.  Your AD server is currently acting as your DHCP server along with your router.  You should only have one DHCP server unless there is another router doing the routing for you.  Right now, it appears that your router is issuing IP addresses for the clients.  Please disable the DHCP on your AD server and try again.   Also, is DNS server is activated on your AD?  If it is, it could be your second problem there.

You will need to reboot every thing, I meant every thing in this sequence:

1) Your modem from your ISP
2) Your router
3) Your AD server
4) The rest of the laptops

Please report the outcome.

bpfsrAuthor Commented:
Didn't realize the question was till open, take down the recommendation and I will accept an answer
bpfsrAuthor Commented:
thank you
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Windows Server 2003

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