Windows XP Disconnects from Server 2012

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psustephie

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Mar 16, 2001
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My office computer runs Windows XP Professional SP3 (see below), and I'm connected to our new server running Server 2012 Essentials. For the last month or so, at 4:00 every afternoon my computer loses its connection to the server. I have two programs that access the server, and both give me error messages and freeze, and I need to restart to get back to normal. I don't pay much attention to my clock, so I'm typically on the phone with a customer trying to accomplish something when my system has a meltdown.

The same error messages come up each time:

The Security System detected an attempted downgrade attack for server cifs/DELLSERVER. The failure code from authentication protocol Kerberos was "There are currently no logon servers available to service the logon request.
(0xc000005e)".

The Security System could not establish a secured connection with the server cifs/DELLSERVER. No authentication protocol was available.


According to the error logs, this happens in the evenings and early mornings too, although not every day. When it does happen during non-work hours, it looks like it's consistently an hour apart (1:10AM, 2:10AM; 4:10AM, etc. or 5:35PM, 6:35PM, 7:35PM). The error will show up 3 or 4 times in a row, then everything will work fine for several hours.

I do not have any idea where to start to fix this. To my knowledge, I'm the only one with this issue, so I'm pretty sure it's a problem specific to my machine

As always, thanks for your help!


Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows XP Professional, Service Pack 3, 32 bit
Processor: Intel(R) Pentium(R) 4 CPU 3.00GHz, x86 Family 15 Model 4 Stepping 9
Processor Count: 2
RAM: 2013 Mb
Graphics Card: ATI Radeon Xpress 1100, 128 Mb
Hard Drives: C: Total - 76245 MB, Free - 18881 MB;
Motherboard: Dell Inc., 0MH651
Antivirus: Symantec Endpoint Protection, Updated: Yes, On-Demand Scanner: Enabled
 
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