Could really use someone's help

[alguzman]

For some reason I can't join the domain. All the other computers in the office have no problem. The error I'm getting is:

"Network Identification:
The following error occurred attempting to join the domain"*****"
The network name can not be found"

These are the steps I already tried:

1. entered domain.com and domain with out the .com. Entered username and password. No luck same error.

2. Entered domain.com and domain without the .com and tried to use administrator and password. No luck

3. I went to the server and added my computer name to computers and then tried to join. No luck

4. I double checked IP address and it is good and not shared with someone else. I can ping the server by IP and by name.

5. I entered manually a host file in the forward lookup zone. Nothing, no luck.

My private IP addresses are in the 10.0.0.X
subnet mask 255.255.255.0

I have a second NIC and have my dsl router attached to it and entered the static IP addess my ISP gave me. I also entered a range of IPs when I set up NAT because our ISP gave us 15 IP addresses. The range is only the range of the public IP addresses.

I checked my DNS Forward lookup zone and see the following:

Forward Lookup
Start of Authority [76], server01.domain.com., admin
NS server01.domain.com
Host 12.98.169.194 INternet ISP
Host 10.0.0.1 This is the server
Computer1 Host 10.0.0.4 (that's my computer that I manually added)
computer2 Host 10.0.0.3
computer3 Host 10.0.0.9
computer4 Host 10.0.0.2
computer5 Host 10.0.013
computer6 Host 10.0.0.7
computer7 Host 10.0.0.8
computer8 Host 10.0.0.15 Computer name is not being used
server01 Host 10.0.0.1 Is this correct, should the server be listed here as a host?
computer10 Host 10.0.0.10

Reverse Lookup Zone
SOA [5] Server01.domain.com
NS server01.domain.com
10.0.0.1 Pointer server01.domain.com
10.0.0.13 Pointer computer3
10.0.0.17 Pointer computer2
10.0.0.9 Pointer computer4

Is there anthing you see in my dns configuration that may be causing the problem?

[Sterling_Aug]

What OS?

Win2k/XP uses domain.com, NT uses only domain

Do you have permissions set to be allowed to join the Domain?

[alguzman]

WINDOWS 2k ADVANCED SERVER AND WINDOWS 2K Pro. THE DOMAIN IS REALLY NOT CALLED DOMAIN.COM, I JUST PUT THAT THERE.

Yes I have permission, in fact I can log on using the other machines that are already joined. I can use my username and password and log on to their systems.

[Midknyte]

so your server is doing the NAT? the dhcp is disabled on the router, right? are you sure that the computer you configured has the dns server address info? if you can ping the server, but can't see the domain name, that's a dns problem.

[alguzman]

I can ping my server using the server's ip address and I can ping the server using it's FQDN server01.mydomain.com for example.

Yes I am using NAT to share the DSL line. I also entered in a range of public IP address when I was configuring the NAT service. We are assigned 15 public IP address from our ISP so I decided to include them in the range of public IP address when I set up NAT.

For the public side I'm using 10.0.0.x
255.255.255.0 ip scheme.

I can in fact log on to another machine using my username and password. I just can't join the doamin on my machine.