Re: SBS 2K3 DHCP Server Pooched?

Thanks again, Steve.

I will double check that Trend is not scanning the DHCP database, although
if it is it has been doing it for a couple of years without issue.

Cheers,
Bill

"Steve" <wonderlan1@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:eMU5DogwIHA.5620@xxxxxxxxxxxxxxxxxxxxxxx
Good to hear that.

It is not unusual for DHCP to repair it's database though it sometime
takes a little while. Reading the info at http://www.eventid.net it shows
that more than a few users found the initial problem to be related to AV
software scanning the DHCP database so you may want to try and configure
any AV software to not scan the DHCP database folder if possible. Or it
may have just been one of those wierd things that happen on occasion.

Steve


"Bill Glidden" <billyg1943@xxxxxxxxxxx> wrote in message
news:uPLeCegwIHA.3860@xxxxxxxxxxxxxxxxxxxxxxx
Thanks Steve,

This is really weird but suddenly DHCP started working properly again. I
have absolutely no explantion as to why except that my head was beginning
to hurt with the prospect of having to delve deeper into the wonderful
world of DHCP.
Sorry to trouble you.

Cheers,
Bill
"Steve" <wonderlan1@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:OIZ6qQgwIHA.548@xxxxxxxxxxxxxxxxxxxxxxx
The link below details info about the DHCP log and where it is located.

http://technet2.microsoft.com/windowsserver/en/library/2a535b4d-1771-485b-8bfa-459d35d563fb1033.mspx?mfr=true

The info below on one of your Event IDs and possible solutions [I pasted
just one] is in the link below from http://www.eventid.net a very
helpful resource.

http://www.eventid.net/display.asp?eventid=1016&eventno=736&source=DHCP&phase=1

- Error: "An error occurred while accessing the DHCP database. Look at
the DHCP server log for more information on this error" - I received
this event along with Event 1014 from source DhchServer. I believe the
problem was originally caused by the AV scanning the DHCP directory.
However, turning off the AV scanning did not clear the errors. They
still appeared every day and on the DHCP Server service restart. To
clear the error, I stopped the DHCP Server service and then I renamed
the DHCP.mdp file in %systemroot%\system32\dhcp and also the backup one
at %systemroot%\system32\dhcp\backup\old\jet. After this was done, I
restarted the service and allowed it to rebuild the DHCP database. When
doing this, make sure you have conflict detection enabled on the DHCP
server or you may see duplicate IP addresses being assigned

If nothing seems to help I would uninstall and reinstall the DHCP server
service as I mentioned in my previous post.

Steve



"Bill Glidden" <billyg1943@xxxxxxxxxxx> wrote in message
news:%23r6pbJgwIHA.4492@xxxxxxxxxxxxxxxxxxxxxxx
Thanks for prompt response, Steve.

The SBS DHCP Server was never stopped. Found these three errors is in
the System Log after recreating the scope:

Event Type: Error
Event Source: DhcpServer
Event Category: None
Event ID: 1014
Date: 30/05/2008
Time: 12:39:33 PM
User: N/A
Computer: GLIDDEN-SBS2K3
Description:
The following problem occurred with the Jet database -1032: Jet
database read or write operations failed. If the computer or database
has just been upgraded, then this message can be safely ignored. If
this message appears frequently, either there is not enough disk space
to complete the operation or the database or backup database may be
corrupt. To correct this problem, either free additional space on
your hard disk or restore the database. After you restore the database,
ensure that conflict detection is enabled in DHCP server properties.
For information about restoring the database, see Help and Support
Center. Additional Debug Information: JetBackup.

Event Type: Error
Event Source: DhcpServer
Event Category: None
Event ID: 1016
Date: 30/05/2008
Time: 12:39:33 PM
User: N/A
Computer: GLIDDEN-SBS2K3
Description:
The DHCP service encountered the following error when backing up the
database:
An error occurred while accessing the DHCP database. Look at the
DHCP server event log for more information on this error.

Event Type: Error
Event Source: DhcpServer
Event Category: None
Event ID: 1010
Date: 30/05/2008
Time: 12:39:33 PM
User: N/A
Computer: GLIDDEN-SBS2K3
Description:
The DHCP service encountered the following error while cleaning up the
database:
An error occurred while accessing the DHCP database. Look at the
DHCP server event log for more information on this error.

Where is the DHCP server event log when it is at home?

I will run netdiag and and dcdiag see if that finds anything.

Bill


"Steve" <wonderlan1@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:%23DlAIAgwIHA.5096@xxxxxxxxxxxxxxxxxxxxxxx
The DHCP service should start up on its own once you remove the other
unathorized DHCP server after a short period of time. Look in the logs
for the server - particualry system and application to see if anything
listed there is of help and run the support tools netdiag and dcdiag
on the server to see if anything of note is shown as a problem. If
you gave other computers on the network correct static IPs and they
can not ping the server that has nothing to do with DHCP. If you tried
pinging server by name try pinging by its IP as shown via ipconfig
/all to see if that works. If ping works by IP but not name you have a
name resolution problem of some sort. If all looks well and DHCP still
does not work try uninstalling and reinstalling and reconfiguring
DHCP [Control Panel/add and remove programs/add and remove Windows
components/networking ].

Steve

.

Verify that the server has static IP and points ONLY to itself as its
DNS server
"Bill Glidden" <billyg1943@xxxxxxxxxxx> wrote in message
news:eTm9NpfwIHA.3384@xxxxxxxxxxxxxxxxxxxxxxx
There was another DHCP server on the network for a couple of days
giving out IP Addresses on a different network to my SBS network. I
have since removed it, but something is now wrong with the SBS DHCP
server. Some PCs cannot contact the DHCP server and even if I give
them the correct static addresses they still cannot ping the SBS
server. Other PCs on the same network are able to release and renew
their IP addresses OK. I have restarted the DHCP service, reconciled
the scope, confirmed that there are available addresses, deleted the
leases of the affected PCs, restarted the server. I am unable to
unauthorised the server. I get a "parameter incorrect" error. The
event logs are clean on the SBS server. Can someone please give me a
hand with this?
Cheers,
Bill













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