Windows Thread, Server freezing in Technical; Got a really odd problem that's only started to happen in the last 2 weeks, our domain controller freezes and ...
Got a really odd problem that's only started to happen in the last 2 weeks, our domain controller freezes and locks all the clients up on the network. I can still ping it, but can't access any shares on it.
There's nothing at all in the error logs, I can't seem to track it down! Anyone seen anything like this before? The only way I can fix it is do a dirty power down and turn it back on.
Our DNS is set up OK and there's no physical network problems.
The server is a Dell Poweredge 1750 running Server 2003 Standard SP1, Dual Xeon 3.4 Ghz and 4GB RAM. It only serves as the domain controller and file server. DNS, DHCP etc are run on other machines.
Check the size of your event logs - I had a server with the same probs and id forgotton to set max size to event log - security had reached over 1 gig.
Hmm, I doubt it's overheating, the server's in an air conditioned room kept at around 18C.
Nothing on the hardware side has been changed, the only things that have been installed are Windows Updates, i've got two other identical (hardware) servers that have the same updates installed and they're OK.
I've run a few basic tests using Dells OpenManage and it's come up with nothing wrong on the hardware side. Gonne get the UBCD out at lunch time and give it a going over.
The only error in the event log is the following from the 3rd:
Event Type: Warning
Event Source: NtFrs
Event Category: None
Event ID: 13562
Date: 03/01/2006
Time: 16:55:14
User: N/A
Computer: MCLC1
Description:
Following is the summary of warnings and errors encountered by File Replication Service while polling the Domain Controller mclc1.clc.mclc.org.uk for FRS replica set configuration information.
But then it doesn't actually list any errors :P Nice
Run some performance counters to see what the network utilisation is like and also pagefile usage...
Check anti-virus and spyware protection is ok on both server and clients... I've seen infections in the past have similar results...
you've got antivirus software on your dc? i was told that was bad...
If you disable the NAV, does it lock up then?
When you say freeze, can you still control the GUI? can you remote control into it?
hardware would seem logical place to look, like you said, get the UBCD and do a memtest.
any dust on the motherboard or RAM, that has locked a few workstations in my past job.
also when you say automatic updates, do you also mean you update via the MS site? as updating the graphic drives has also locked up a few pc's in the past.
don't rule out recent fixes as causing your problem. what got installed in the past 2 weeks via windows update? despite the need to update, you should wait a few days to see if anyone reports problems with the hotfixes in the MS forums. installing untested stuff on a live server is never a good thing.
do you auto download and manual install, i have known of problems where a hotfix didn't install right because the server was doing something else at the time when an auto install went. servers should really be maually updated.
how many times have you "safe shutdown" the server since 2 weeks ago? the hotfixes might of needed a proper reboot to initilise properly.
Yes, we run SAV Corporate on our DC, always have done and it's been fine for years!
When it freezes, I can't do anything with the start bar, I can still move icons around the desktop, but trying to bring up the task manager took about 10 minutes. There's no major disk activity when it freezes.
Not tried to remote into the machine when it goes, I will next time though!
I'm keeping the task manager open for the next time it crashes to see if there's anything eating up memory etc.
I say automatic updates, what i mean is WSUS :P I make sure WSUS only downloads OS and Application updates, never any drivers. I alos install the updates manually on the servers.
I did a proper reboot this morning, then a couple of hours later it froze.
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