Windows 7 workstation can't join Domain

Hi,

SBS 2011 Essentials.

We are trying to join a Windows 7 Pro machine to a network, and are getting this message:

"An attempt to resolve the DNS name of a domain controller in the domain being joined has failed. Please verify this client is configured to reach a SNS server that can resolve DNS names in the target domain...."

A search has brought up several solutions, but I'd like to learn the best approach to handle this situation, and not necessarily a quick Band-Aid solution.

Thanks.
Go-BruinsAsked:
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rindiCommented:
set the PC to get it's IP via DHCP, and make sure your SBS server is the only DHCP server in your LAN.
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Go-BruinsAuthor Commented:
Hi,

our SBS Server does not handle the DHCP. it's handled by our Router. perhaps that's the problem? where can I go to check if our Server is playing the DHCP role?
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fabric8Commented:
go to server manager, and see if the dhcp role is installed, also install the DNS role, and set the DNS IP for your clients to your server IP
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rindiCommented:
If I remember properly, there is a console on the SBS server where you can configure and control all it's functions. Also, when setup an SBS Serevr properly you go through it's wizards and those wizards also setup it's DHCP server role properly.

Important is that the PC's only have the SBS server listed as nameserver, no other nameserver should be there (ie the router, or your ISP's nameserver).
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Go-BruinsAuthor Commented:
Ok - let's assume:

- Server IP address is 192.168.1.10 (set manually by me)
- Router handles DHCP, and its IP address is 192.168.1.1

On the workstation side, what should the IPv4 settings be:

- Default gateway
- DNS
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Nagendra Pratap SinghDesktop Applications SpecialistCommented:
You should disable your router DHCP. This is the simplest solution in this case.
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Go-BruinsAuthor Commented:
but by default, SBS 2011 (Essentials version) doesn't do DHCP, does it?
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cpmcomputersManaging DirectorCommented:
Very important to only have one dhcp service on an SBS network

Either the server (preferred) or the router
the default for your workstations is ( or should be ) set for automatic IP and DNS discovery
Thats the point of DHCP

The workstations will pick up the DHCP device by mac exchange when they are first booted up
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Go-BruinsAuthor Commented:
if we let the Server handle DHCP, who would dole out IP addresses for the people who jump onto our wireless network without joining the Domain?
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cpmcomputersManaging DirectorCommented:
If you want the full sp on essentials

http://blogs.technet.com/b/sbs/archive/2011/09/22/running-dhcp-server-on-sbs-2011-essentials-with-a-static-ip.aspx

this explains that DHCP is not enabled by default but how to do is
And what your client configs need to be
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cpmcomputersManaging DirectorCommented:
depends on your router/firewall device
you would normally offer a "guest network" from the router with a different ip range and have it completely firewalled from your internal domain
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rindiCommented:
It isn't necessary to be joined to the domain to get a valid IP from the server's DHCP server.
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Go-BruinsAuthor Commented:
hi,

we disabled the DHCP on the router, then let SBS 2011 Essentials handle the role.

all seems well - thanks to everyone.
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Go-BruinsAuthor Commented:
Thanks all!
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