DHCP Services stop within 10 seconds of starting

do you have hyper-v  installed?

http://support.microsoft.com/kb/958829

someonenamedbrendan:

No Hyper-V is not insatlled. Hoe can I tell ?

Dal

Also receiving many of the following errors in Eventviewer:

DCOM was unable to communicate with the computer DELL-BDD31FA25A.dentalserve-net.local using any of the configured protocols.

dal

Do you get some other DHCP errors/warnings. Most probably someone has connected another equipment with DHCP server enabled. (print or some other kind of server,...)
To verify that you can try to issue comands ipconfig /release and ipconfig /renew from computer that normally gets IP address from sbs server - but in this case, make sure that DHCP server service on sbs is not running. What IP address the computer gets?

davorin:

DNS and DHCP IPs automatically assigned to PCs after boot point to 192.168.2.1 instead of 192.168.2.2 so intranet is not accessible.
192.168.2.1 is the Router IP (DHCP is Disabled)

Dal

davorin:

Alos the event log shows:

The DHCP service has detected that it is running on a DC and has no credentials configured for use with Dynamic DNS registrations initiated by the DHCP service.   This is not a recommended security configuration.  Credentials for Dynamic DNS registrations may be configured using the command line "netsh dhcp server set dnscredentials" or via the DHCP Administrative tool.

Dal

davorin:

We are also getting intermittent disconnection/loss of Web pages.

dal

I agree with davorin. I believe that that there has been another device connected with DHCP service running.

How many servers are in the network? The error message leads me to think that it may be a server, but anything with DHCP configured is acting like a server.

The loss of connection will happen if you are having DHCP / IP issues.

How are you handling DNS? From a server or a the router?

davorin:

Check into a multihomed DC as well.

DHCPloc.exe is a command line tool that you can use to track down rogue DHCP servers on the network. Usually these rogue DHCP servers are mass storage devices or routers, (but not always).
ROGUE DHCP servers will shut down a Microsoft DHCP server IF on the same scope and address pool. Rogue servers are seen by the Windows DHCP server as a server that doesn't "have the credentials to be a DHCP server".

Also on a multihomed server, both interfaces may try to provide DHCP...This includesa VPN connection as a subinterface on the server.

ChiefIT

The event log shows the following:

The DHCP/BINL service on this computer running Windows Server 2003 for Small Business Server has encountered another server on this network with IP Address, 192.168.2.1, belonging to the domain:

Any ideas what the problem could be:

The Windows SBS 2008 is setup with a static IP Address of: 192.168.2.2
To access the netgear Router I have to type IP: 192.168.2.1

When I do a release/Renew on a PC I get the follwing:



Ethernet adapter Local Area Connection:



        Connection-specific DNS Suffix  . : Belkin

        Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection

        Physical Address. . . . . . . . . : 00-19-B9-47-33-46

        Dhcp Enabled. . . . . . . . . . . : Yes

        Autoconfiguration Enabled . . . . : Yes

        IP Address. . . . . . . . . . . . : 192.168.2.14

        Subnet Mask . . . . . . . . . . . : 255.255.255.0

        Default Gateway . . . . . . . . . : 192.168.2.1

        DHCP Server . . . . . . . . . . . : 192.168.2.1

        DNS Servers . . . . . . . . . . . : 192.168.2.1

        Lease Obtained. . . . . . . . . . : 20 October 2010 08:07:54

        Lease Expires . . . . . . . . . . : 19 January 2038 04:14:07

Problem Solved , there was a Wirless device causing the problem.

Glad you solved the problem. It was Belkin WLAN device?

@ChiefIT:
SBS2008 does not support multiple NIC configuration.
But DHCPloc.exe tool will be useful. Thank you!