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My Win 2003 Server reboots every 36 hours with a System Error, event ID 1003:
Error code 000000c2, parameter1 0000000a, parameter2 8175b8b0, parameter3 77147c1c, parameter4 00000000.This is a machine that is connected to the internet with an Alcatel ADSL modem.
Has anybody seen this?

Whereas the error code could be any number of things, the fact that it reboots in a such a cyclical fashion leads me to believe it may be a memory leak.
With a memory leak, memory allocated to programs is not returned, so your memory resources will dwindle with time. Eventually, when they hit zero, the system crashes, then reboots and starts from scratch again.
Watch your memory usage...
Install any new software lately?

If Eric is correct then you might try using performance monitor and setting up a log there to watch. Now leaks aren't exactly easy to set up so search for how to's on looking for that.

Hi, the memory use is very stable.
I checked with my ISP and it seems to mach the 36 hours refresh time of the dynamic IP attributed. What do I do from now on?

You can't just look at the memory once or twice when diagnosing a memory leak. You need to monitor memory usage over time, and watch closely as the 36th hour draws near.
What makes you think it is the IP lease that is causing this? If your ISP's IP address lease is set to 36 hours, then your NIC should actually be renewing every 18 hours (50% lease duration).
Test your computer by doing ipconfig /release and then ipconfig /renew. If it is the process of renewing a lease that is causing your problems, then this should trigger it.
If this is the problem, then it is a very strange one indeed. You could buy a static IP, or change the NIC, or put it behind a router/firewall (probably a good idea anyways) and use a reserved private IP.

Eric,
Actually I cannot release or renew the IP: The operation failed as no adapter is in the state permissible for
this operation.
I think this modem is configured as an ISDN card (?). Anyhow, this is not a standard DHCP configuration.
When I just disconnect (right button - Disconnect) it actually reboots.
So I think this is reaaly the source of the problem.

How are you connecting to the modem? Is it internal to your machine? Is it an external network bridge?
Have you upgraded the firmware and drivers on the modem? How about the NIC?

I am using an Alcatel (now Thomson) USB modem : http://www.speedtouchdsl.com/produsb.htm
I have updated the drivers.

Pretty sure I read about different ways to reboot the system via (can't remember this) scripts? It was an article about keeping up web pages and apps that had known problems. The solution to buggy things was to put events that triggered reboots. That might be hours or web hits or any of a few things. Is there anyway something like that is on your system?
Darn, I read it only a few weeks ago and already forgot. I think it was on technet virtual server training? Dunno.

Disable the auto reboot. Take a look at
http://support.microsoft.com/default.aspx?scid=kb;EN;320299

I guess the above might also shed a clue. Yes, if you disable the autoreboot then you might be able to read the dump log and find out if a driver is causing it.
I would bet a nickel that it can't possibly be the internet. I like the memory or application error deal better.

Have you checked the internel time on your sim? memory leaks don't keep time, one other thing you can do is put a camera on the power switch and roll the tape.
One side note , you might only have the 36 hour license from micosoft, there is a 48 hour license available.

U need Driver Verifier / Debugging to force your current drivers through a bug_check
the source of the event id and the error code should help on this, but generally a device / filter driver, system service, BIOS is not compatible or faulty at the kernel-mode level of W2K3 / XP operating system - as u prob. already know...here is the article on your specific bug_check_code "error code"
http://msdn.microsoft.com/library/en-us/ddtools/hh/ddtools/BCCodes_9c1c37ad-b719-489e-a2d1-34bae43d6e00.xml.asp

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