DOMAIN is not accessible?

We have a Server 2003 and our domain name is ZOSCO. Normally I am able to access network files through Microsoft Windows Network and then I would click the "ZOSCO" domain. Now what is happening is that I get the error message

"ZOSCO  is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions.  The list of servers for this workgroup is not currently available".  

I have domain rights through my workstation account , so I should be having permissions?

This is where things get weird. When I click run and type: "\\fileserver" or "\\"  I immediately can access all the shared folders on the server. However I find it really strange since I am able to log onto the domain without a problem. When I go to cmd.exe and I try to ping I get

Reply from bytes=32 time<1ms TTL=128

I do not know what happened to my Domain  because everything was working properly.
Who is Participating?
AymanDasaAuthor Commented:
Dear Adnan_Haider

i wont inform you before I post any question I try hardly to search throw Google ad yahoo to solve it  I post it in EE but to give me a link to many web site they have same problem without solution is not an answer  

Raj-GTConnect With a Mentor Systems EngineerCommented:
1. So you have a WINS server in the network?
2. Check and see if you have Netbios over TCP/IP enabled on the clients.
3. Check the DHCP scope options to see if you are using the correct WINS node type (should be h-node)

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GhousullahConnect With a Mentor Commented:
Check below services are running.

1. DNS client service
2. Windows Time
3. Workstation
4. Server

If everything is fine. Then goto command prompt and type "ipconfig /flushdns" and "ipconfig /registerdns". And restart the computer.

If this not solves then disjoint your computer from domain and rejoin to domain this should fix the issue.
MariusSunchaserConnect With a Mentor Commented:
Hello there.

I would say that this is Browser Service problem. Check to see if the service is started, and check the logs about errors.
If that is the case, I will point you some good articles to help you understand and troubleshoot browser service problems.
AymanDasaAuthor Commented:
Mr MariusSunchaser

I test all the other expert Raj-GT , Ghousullah


whin I format new computer and connect the computer to domain the problem comming

 i dont have DHCP,WINS,Netbios
AymanDasaAuthor Commented:
I think this is the problem
Browser Service
MariusSunchaserConnect With a Mentor Commented:
Here are 2 articles you should read:
The one above describes Computer Browser Service.
The one above helps you troubleshoot these problems.

I say you read them carefully.
About WINS and NETBIOS, you should have WINS, and you should set Netbios.

How do you know if it's a browser service problem? If you don't have errors related with that, configure WINS and Netbios first.
ChiefITConnect With a Mentor Commented:
It could be a browser problem, but I think I would like to start with Internet Explorer Enhanced Security:

If not, let's troubleshoot the browser.
GhousullahConnect With a Mentor Commented:

First check whether your DNS is properly registered or not... Give NSLOOKUP and check whether it points to your DNS server.

If not try to ping <domain name>.com... this should reply with ur DNS server IP. if not look into host record for your domain name in DNS directory.
AymanDasaAuthor Commented:
I do not find any accepted solution so I format the domain and install it from scratch
so 500 point to all
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