DNS server error - please help!

June 17, 2011 at 08:06:49
Specs: SBS2003
Hi There,

Mindboggling problem here. We have a very small network, not on the internet, with SBS2003 as DC, DNS and DHCP server, just doing file/print stuff.

A tech guy came to install a adsl router, and now none of the clients can log on anymore. DHCP not working, because DNS is not working properly.

DNS test: Failed
The DNS entries for this DC cannot be verified right now on DNS server 10.0.0.1, ERROR_TIMEOUT
[FATAL] No DNS servers have the DNS records for this DC registered.

In the event viewer I get the same error 5781, NELOG_NetlogonDynamicDnsServerFailure.

>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : server
Primary Dns Suffix . . . . . . . : Bulugha.local
Node Type . . . . . . . . . . . . : Unknown (was 'Broadcast' before I started fiddling)
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : Bulugha.local

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection
Physical Address. . . . . . . . . : 00-0F-1F-F8-A1-68
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.0.0.1
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 10.0.0.1
DNS Servers . . . . . . . . . . . : 10.0.0.1
Primary WINS server.............:10.0.0.1

Ive tried flushing DNS, etc

Ive got two forward lookup zones in the DNS server,_msdcs.bulugha.local and server.bulugha.local. Both are set to allow both secure and unsecure updates.

halp! I cant figure it out anymore....


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#1
June 17, 2011 at 08:31:29
call the tech back and have him disable the routers dhcp server since it is in conflict with the sbs dhcp server.
tech also needs to set the router to your 10.x.x.x network and not to the routers default of 192.168.x.x

unfortunately it looks like you messed up also
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.0.0.1
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 10.0.0.1 <--- wrong
DNS Servers . . . . . . . . . . . : 10.0.0.1
Primary WINS server.............:10.0.0.1

You have the server pointing to itself as gateway to the internet.
You should not have messed with the server. It appears you changed the servers ip address from the error above.

If possible can you do a system state restore from backup to before you messed with the server?

Answers are only as good as the information you provide.
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#2
June 18, 2011 at 04:49:02
Hi Wanderer,

I thought the same thing, and I immediatelly unplugged the adsl router. All cabling is exactly as it used to be when it worked.

Sorry, the default gateway address is just one of my desperate attempts to get the dns server to register the dc. Ive taken it away and the same problem occurs.

No backups are available unfortunately. Any more thoughts?!


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#3
June 18, 2011 at 11:45:40
did you document the ip settings before you changed them?
we need to know what they were.

One way to check is go into dns server and lookup the servers name to see what ip was assigned [server entry should be a static entry]

Also what is up with this?
IP Routing Enabled. . . . . . . . : Yes

You only show one nic. This should be no not yes.

What exactly did you do?

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's


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