MSDLC Hangs Computers Running Processor Speeds Over 66 MHz (128639)
The information in this article applies to:
- Microsoft Windows for Workgroups
- Microsoft Windows 3.1
- Microsoft LAN Manager
- Microsoft Windows 95
This article was previously published under Q128639 SYMPTOMS
When you attempt to load MSDLC.EXE in Windows or Windows for Workgroups
with computer processors running at speeds greater than 66 MHz and initiate
the host session, Microsoft Data Link Control (MSDLC) either does not
respond to host commands or the processor stops responding (hangs) forcing
a system reboot. MSDLC.EXE loads fine from MS-DOS.
CAUSE
The timer routine is not set properly for Pentium processors resulting in
unnecessary network traffic. In addition, a FRMR routine ran due to the
high network traffic. This is not appropriate for the Class II, CCB II
protocol in the DLC stack. This causes the system to hang.
STATUS
Microsoft has confirmed this to be a problem in MSDLC. A fix to this
problem for Microsoft LAN Manager version 2.2 and Microsoft Windows for
Workgroups version 3.11 is in development, but has not been regression-
tested and may be destabilizing in production environments. Microsoft does
not recommend implementing this fix at this time. Contact Microsoft Product
Support Services for more information on the availability of this fix.
| Modification Type: | Major | Last Reviewed: | 12/8/2003 |
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| Keywords: | KB128639 |
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