SBS 2003 crashed.. now DHCP will not start

Posted on 2013-01-08
Last Modified: 2013-01-19
My server has been crashing and I am trying to get a temp DC going for a swing migration. The temp DC will not take. But when the server crashed and restarted I lost the dhcp service. I cannot start it or authorize it.  I am not sure what to do at this point. Any help would be greatly appreciated.
Question by:Skunny
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LVL 23

Expert Comment

by:Thomas Grassi
ID: 38755933
Is this on the server that crashed or the Temp DC?

Remember that FSMO roles are on a DC and if you only had on DC then the server that crashed needs to be up and running to transfer the roles or you will have to force the roles.

Thats a start.

Whet errors in the event log are you getting.

Can the original DC be up and running?

Author Comment

ID: 38755970
This is on the main domain controller . The temp DC issue was a month or so ago when i was starting the swing migration. I would never sync the sysvol. SO i put it aside. But now the main server crashed and once restated DHCP will not start. I clicked on event viewer and the machine restarted.
LVL 18

Expert Comment

by:Sushil Sonawane
ID: 38755974
Make sure another dhcp server not available in network because in SBS only single DHCP server will work.

Configure the antivirus software to exclude the %systemroot%\System32\DHCP folder when it scans the computer
LVL 23

Expert Comment

by:Thomas Grassi
ID: 38756036
ok what else is running on this server? Applications services?

What is in the startup ?

We need to find out why this is crashing first.

Opening the event viewer should not crash the server.

Can you schedule a chkdsk

Author Comment

ID: 38756042
I am pretty sure there is no other DHCP server running. Because none of the pc's that are set to dhcp get an ip from a dhcp server.
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LVL 23

Expert Comment

by:Thomas Grassi
ID: 38756086
If they are not getting the Ip from the windos 2003 server then were are they getting it from?

Author Comment

ID: 38756145
I changed the ones having issues to static IP's
LVL 23

Expert Comment

by:Thomas Grassi
ID: 38756173
Ok so now all computer can access the netwok using static.

We can now figure out why the DHCP service is not starting.

WE need to see the event log to see what errors we are getting.

How are you trying to view the event logs?

Are you using mmc?

If you are using MMC it could be corrupted if it crashes your server when you view it.

What happens if you use start programs and select event viewer from administration tools?

Accepted Solution

Skunny earned 0 total points
ID: 38774826
After checking the eventviewer I had determined that a log file (j50.log) located in:

C:\Windows\System32\DHCP\ had become corrupted.

I made a copy of the log file, and deleted the log file from C:\Windows\System32\DHCP

Then started the DHCP service through the Services Console.  The logfile was recreated, and DHCP worked perfectly afterwards.

Author Closing Comment

ID: 38796055
http://www.experts-exchang<wbr /><wbr />icrosoft_O<wbr />perating_S<wbr />ystems/Win<wbr />dows/2000/<wbr />Q_21614014<wbr />.html<br /><br />Found info on another thread

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