Replacing TCP/IP After SP2 Causes STOP 0x00000050

 Last reviewed: March 3, 1998
Article ID: Q162837

The information in this article applies to:

  • Microsoft Windows NT Workstation version 4.0
  • Microsoft Windows NT Server version 4.0

SYMPTOMS

On a Windows NT 4.0 computer that previously had Service Pack 2 (SP2) installed, if you remove the TCP/IP protocol, and then later add TCP/IP to the system, when you boot the computer, you receive the following STOP error: 

   STOP 0x00000050 (0xFF10c004, 0x0, 0x0, 0x0)  PAGE_FAULT_IN_NONPAGED_AREA

   -or-

   STOP 0x00000050 (0xFF404004, 0x0, 0x0, 0x0)  PAGE_FAULT_IN_NONPAGED_AREA

   -or-

   STOP 0x00000050 (0xA0133004, 0x0, 0x0, 0x0)  PAGE_FAULT_IN_NONPAGED_AREA
NOTE: The first argument may change but the STOP code (0x00000050) is the same in all error messages.

CAUSE

This error only occurs if Remote Access Service is installed and is configured to use the TCP/IP protocol as either a dial-in or a dial-out protocol.

WORKAROUND

To work around this problem, after adding the TCP/IP protocol back to the system, do one of the following: 

   Reapply SP2 after adding the TCP/IP protocol back to the system, but
   before rebooting the computer. Click No when you are prompted to
   reboot, after adding TCP/IP.

   -or-

   After adding the TCP/IP protocol, disable TCP/IP from your RAS
   configuration and allow the Windows NT computer to reboot. After the
   computer reboots, reapply SP2 and enable TCP/IP through RAS.
To recover from this error, use the method appropriate to your situation.

Method 1: Windows NT Is on a FAT Partition

If Windows NT is installed on a FAT partition, boot the computer to another operating system (such as MS-DOS, Microsoft Windows 95, or Microsoft Windows 3.x). Replace the Tcpip.sys file in the \Winnt\System32\Drivers folder with the one from Service Pack 2.

Method 2: Windows NT Is on an NTFS Partition

If Windows NT is installed on an NTFS partition, install a parallel copy of Windows NT 4.0 in a new directory. Replace the Tcpip.sys file in the \Winnt\System32\Drivers folder with the one from Service Pack 2. Reboot to the original Windows NT installation, and then reapply Service Pack 2. When you are done, delete the parallel installation of Windows NT 4.0.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem was corrected in the latest Windows NT 4.0 U.S. Service Pack. For information on obtaining the Service Pack, query on the following word in the Microsoft Knowledge Base (without the spaces): 

   S E R V P A C K

Additional query words: crash hang blue screen bluescreen 0X50
Keywords : ntnetserv NTRAS NTSrvWkst ntstop nttcp prodnt kbnetwork
Version : 4.0
Platform : winnt
Solution Type : kbworkaround

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Last reviewed: March 3, 1998
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