Added 2nd NIC. Cannot start DHCP server. "Cannot find the DHCP Ser

Network was working fine with a single NIC, router/gateway, DSL modem config.

Had problems with DSN, so took advice and installed a 2nd NIC. However,
since installing the 2nd NIC, 1) I can access the Internet from the SBS but
cannot access from the clients, 2) clients don't see the SBS, 3) when I
attempt to run the Email and Connect to Internet Wizard I get the message "
the wizard can't set tghe DHCP scope options. Ensure that the DHCP server
service is running and that the scope is defined. Alternately , disable the
DHCP service manually, and then configure hyour client computer IP address
properties"

When I go to Admin -> Services and try to start the DHCP, it tries to start
(acts if working) but is not successful. Under Admin -> DHCP there is no
network server shown. If I try to install one it will not let me (i guess
since DHCP is not running)

(There are no IP Address settings of the clients. If I set them manually,
then I can access the server. Though, I still can't access the Internet from
the clients.)

 

Is your router handing out DHCP and thus making the SBS DHCP turn off?

 

Wrong binding order ?

Start | Control Panel | Network Connections
Advanced | Advanced Settings
Ensure the lan nic is first, and the wan nic is second in order, and that
the services are enabled on the correct nic. Ensure the nics are connected
to where you think they are.

 

Susan

There is now no router in the config. With the 2nd NIC I am going straight
from the DSL modem to the NIC (my understanding is that the SBS will take
over the router functions).

jsccorps

 

Yes the SBS External NIC should handle that but if the DSL is PPPoE you may
encounter Timing issues on server restarts and it is better to have a router
between the Modem and the External NIC to keep the WAN connection active on
restarts. See http://www.smallbizserver.net/Default.aspx?tabid=52 for ideal
diagram. And ck binding order as Les says

 

1. The binding order is ok (server LAN NIC first, then the exterior NIC)
2. I don't believe that I'm running PPoE (not required to login/password)
3. NIC connection should be ok. The exterior NIC's IP address and Default
Gateway have the appropriate settings, and the DNS server points to my ISP.
The server LAN NIC seetings look good with the Default Gateway blank.

Would any of this prevent me from starting the DHCP server? When I try to
start the DHCP server, initially it looks successful (Start shows up under
Services) then a few seconds later Start dissapears and it returns to blank.

 

Check in the Event Viewer to see if you are getting an event message stating
something similar to

Event ID : 20036
Source : DHCP Server
Description: The DHCP Server is shutting down because another DHCP Server
with IP Address <IP Address> is active on the network.

If so, one thing you might want to check is the DHCP Server to ensure that
it is only bound to the internal nic. To check the DHCP bindings go to
Start/Administrative Tools/DHCP and then right click on the server's name
and select Properties/Advanced tab/Bindings button. Make sure that only the
internal nic is checked.


--

Hope that helps,
David Copeland
Microsoft Small Business Server Support

This posting is provided "AS IS" with no warranties, and confers no rights.


SBS Newsgroups:

SBS v4.x: microsoft.public.backoffice.smallbiz
SBS 2000: microsoft.public.backoffice.smallbiz2000
SBS 2003: microsoft.public.windows.server.sbs

 

When I go to Start/Administrative Tools/DHCP, no Server name shows up. If I
attempt to install one (the authourized one at 192.168.16.2) it gets so far
and the Server Name shows up with a red X and the following message:

"Cannot find DHCP Server. The DHCP server you specified cannot be located,
there might be network problems, or the DHCP source might not be installed.
The errror was: The DHCP Server service is not running on the target
computer ..."

As I mentioned before when a go to Start/Administrative Tools/Services and
attempt to start the DHCP service, the system rejects the start request.

Any ideas?

 

Hi JS,

Can you post the ipconfig/all from the server please?

--
Regards,

Marina
Microsoft SBS-MVP

 

Server Ipconfig/all:

Host Name . . . . . . . . . . . . : NETWORK-SERVER
Primary Dns Suffix . . . . . . . : godoersenterpriseinc.local
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : Yes
WINS Proxy Enabled. . . . . . . . : Yes
DNS Suffix Search List. . . . . . : godoersenterpriseinc.local

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 S Server Adapter
Physical Address. . . . . . . . . : 00-0E-0C-5B-0C-45
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 68.163.73.228
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 68.163.73.228
DNS Servers . . . . . . . . . . . : 192.168.16.2

Ethernet adapter Server Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/1000 MT Network Connection
Physical Address. . . . . . . . . : 00-C0-9F-37-F7-78
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.16.2
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : 192.168.16.2
Primary WINS Server . . . . . . . : 192.168.16.2

jsccorps

 

Hi JS,

On your external nic the IP and Gateway is the same. That is not possible.
Also make sure that Netbios over TCP/IP is disabled on the external nic. You
will also want to doublecheck the bindingorder.

--
Regards,

Marina
Microsoft SBS-MVP

 

Thanks all"

I needed to:

1) Disable DHCP server on the DSL Router'
2) Correct the Default Gateway setting on the WAN NIC

Problem solved.

 

Hi JS,

Great. Thanks for reporting back.

--
Regards,

Marina
Microsoft SBS-MVP