RPC server is unavaible

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Hi,
I have installed windows 2003 server at home and configured it as domain
controller named contoso.com as per microsoft practice. The server is
connected to a ASDL broadband router, i am hoping to add a client PC to this
domain controller. Prior doing so, i did a dcdiag test and received error as
below:

C:\Documents and Settings\Administrator.GATEWAY>dcdiag

Domain Controller Diagnosis

Performing initial setup:
[gateway] Directory Binding Error 1722:
The RPC server is unavailable.
This may limit some of the tests that can be performed.
Done gathering initial info.

Doing initial required tests

Testing server: Default-First-Site-Name\GATEWAY
Starting test: Connectivity
[GATEWAY] DsBindWithSpnEx() failed with error 1722,
The RPC server is unavailable..
......................... GATEWAY failed test Connectivity

Doing primary tests

Testing server: Default-First-Site-Name\GATEWAY
Skipping all tests, because server GATEWAY is
not responding to directory service requests

Running partition tests on : ForestDnsZones
Starting test: CrossRefValidation
......................... ForestDnsZones passed test
CrossRefValidation

Starting test: CheckSDRefDom
......................... ForestDnsZones passed test CheckSDRefDom

Running partition tests on : DomainDnsZones
Starting test: CrossRefValidation
......................... DomainDnsZones passed test
CrossRefValidation

Starting test: CheckSDRefDom
......................... DomainDnsZones passed test CheckSDRefDom

Running partition tests on : Schema
Starting test: CrossRefValidation
......................... Schema passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... Schema passed test CheckSDRefDom

Running partition tests on : Configuration
Starting test: CrossRefValidation
......................... Configuration passed test
CrossRefValidation
Starting test: CheckSDRefDom
......................... Configuration passed test CheckSDRefDom

Running partition tests on : contoso
Starting test: CrossRefValidation
......................... contoso passed test CrossRefValidation
Starting test: CheckSDRefDom
......................... contoso passed test CheckSDRefDom

Running enterprise tests on : contoso.com
Starting test: Intersite
......................... contoso.com passed test Intersite
Starting test: FsmoCheck
Warning: DcGetDcName(GC_SERVER_REQUIRED) call failed, error 1355
A Global Catalog Server could not be located - All GC's are down.
Warning: DcGetDcName(TIME_SERVER) call failed, error 1355
A Time Server could not be located.
The server holding the PDC role is down.
Warning: DcGetDcName(GOOD_TIME_SERVER_PREFERRED) call failed, error
135
5
A Good Time Server could not be located.
Warning: DcGetDcName(KDC_REQUIRED) call failed, error 1355
A KDC could not be located - All the KDCs are down.
......................... contoso.com failed test FsmoCheck

the outcome of ipconfig /all on this server (domain controller) as below:

Windows IP Configuration

Host Name . . . . . . . . . . . . : gateway
Primary Dns Suffix . . . . . . . : contoso.com
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : contoso.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : NETGEAR FA311/FA312 PCI Adapter
Physical Address. . . . . . . . . : 00-0F-B5-FE-6A-D1
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.1.200
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 127.0.0.1

I also have a look into event viewer on domain controller, i get this error:
Event Type: Error
Event Source: Userenv
Event Category: None
Event ID: 1054
Date: 16/01/2007
Time: 2:36:09 PM
User: NT AUTHORITY\SYSTEM
Computer: GATEWAY
Description:
Windows cannot obtain the domain controller name for your computer network.
(The specified domain either does not exist or could not be contacted. ).
Group Policy processing aborted.

Client PC is able to ping to this server and vice versa, but not able to
join to contoso.com domain.
I have also checked nslookup on domain controller as below:
C:\Documents and Settings\Administrator.GATEWAY>nslookup
Default Server: localhost
Address: 127.0.0.1

set type=srv
_ldap._tcp.contoso.com
Server: localhost
Address: 127.0.0.1

_ldap._tcp.contoso.com SRV service location:
priority = 0
weight = 100
port = 389
svr hostname = gateway.contoso.com
gateway.contoso.com internet address = 192.168.1.200

i have also make sure DHCP Server service is enabled. But added authorised
server to DHCP always not connected and showerror "cannot find the DHCP
server"

Please help... :'(


.



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