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SMB 2003: Network Configuration Wizard - Error "The list of users . . ."

W2K3 SMB SP2, was working fine, but now I cannot add computers via the Network Conf. Wizard. I've verified that the clients, through DHCP, are directed to the server's IP Address for DNS.  Here are the server and client's ipconfig info:

SERVER
   Host Name . . . . . . . . . . . . : SERVER
   Primary Dns Suffix  . . . . . . . : server.local
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : Yes
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : server.local

Ethernet adapter Network Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom BCM5708C
 VBD Client) #2
   Physical Address. . . . . . . . . : *hidden*
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.1.2
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.10
   DNS Servers . . . . . . . . . . . : 192.168.16.3
   NetBIOS over Tcpip. . . . . . . . : Disabled

Ethernet adapter Server Local Area Connection:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom BCM5708C
 VBD Client)
   Physical Address. . . . . . . . . : *hidden*
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.16.3
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . :
   DNS Servers . . . . . . . . . . . : 192.168.16.3
   Primary WINS Server . . . . . . . : 192.168.16.3

CLIENT:

Host Name . . . . . . . . . . . . : JLaptop
        Primary Dns Suffix  . . . . . . . :
        Node Type . . . . . . . . . . . . : Hybrid
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No
        DNS Suffix Search List. . . . . . : server.local

Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix  . : server.local
        Description . . . . . . . . . . . : Intel(R) 82566MM Gigabit Network Con
nection
        Physical Address. . . . . . . . . : *hidden*
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.16.53
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.16.3
        DHCP Server . . . . . . . . . . . : 192.168.16.3
        DNS Servers . . . . . . . . . . . : 192.168.16.3
        Primary WINS Server . . . . . . . : 192.168.16.3
        Lease Obtained. . . . . . . . . . : Monday, June 16, 2008 2:42:10 PM
        Lease Expires . . . . . . . . . . : Tuesday, June 24, 2008 2:42:10 PM
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tizzidale
Asked:
tizzidale
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1 Solution
 
tizzidaleAuthor Commented:
Guys, I know I've seen this question answered on here before, and I think I've read every thread - but none of the recommended solutions are working.  I'll be glad to post any follow up data needed, but I'm in a tight spot and need to be able to add clients to my domain again.  

Here is some more info: If I attempt to add the clients manually, by creating a computer account in Active Directory Users and Computers, then going to the client and using the System Properties - Computer Name changel wizard in an attempt to add the computer to the domain - I get to a point where I receive an error message, which reads in part, "the specified server cannot perform the requested operation" - then when I look back on the server's AD Users & Computers, the computer I had created has been disabled.  

Thanks for any help.
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suppsawsCommented:
Hello tizzidale,

euhm, you are pointing to 192.168.16.3 for dns and dhcp etc, but your server ip is 192.168.16.2 ????
   Physical Address. . . . . . . . . : *hidden*
   DHCP Enabled. . . . . . . . . . . : No
   IP Address. . . . . . . . . . . . : 192.168.1.2
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.10
   DNS Servers . . . . . . . . . . . : 192.168.16.3
   NetBIOS over Tcpip. . . . . . . . : Disabled

the ip adres of your server need to be .3 istead of .2
you can change it easily through the server management console > change server ip

Regards,

suppsaws
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suppsawsCommented:
tizzidale,

ow, read too fast, looks like it is .3 anyway.

how is the server configured, with two nics?
did you read how to configure it with two nic's?
http://sbs.editme.com/network

suppsaws
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tizzidaleAuthor Commented:
Yeah, it's got two nics and it's configured correctly (i think). It had been in production for months, capable of adding clients.  The only thing that's changed recently is that we reset the administrator password, and we opened up a couple of ports in the ISA.  That's it.
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suppsawsCommented:
after a second look your ip settings are ok.
what error are you getting after trying to add a pc via the server management console?
anything in the eventlogs about that?
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tizzidaleAuthor Commented:
There are no event log messages.  The error occurs not on the server, but on the client when I run the Connection Wizard.  It reads in part,"The list of users and computers could not be found on the server."  The rest is suggestions about making sure that the SBS is the primary DNS, which it is.
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tizzidaleAuthor Commented:
Okay, I figured out the issue!  Geesh, this was a learning experience.  

This is what happened.  It seems that a former employee (or someone else with the access) had edited an ISA rule that was meant to deny outbound SMTP request (with Local Host added as a destination) to include LDAP.  Take this out, and what do you know - it starts working.  

Moral of the story: be careful with your ISA deny lists.  
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