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# 3C770 FDDI (FLNK.SYS) Problems Under Windows NT 3.5

Article ID: 123979

Article Last Modified on 11/1/2006

APPLIES TO

- Microsoft Windows NT Workstation 3.5
- Microsoft Windows NT Server 3.5

This article was previously published under Q123979

## SYMPTOMS

Several problems have been reported with the 3C770 FDDI (FLNK.SYS) driver that ships with Windows NT version 3.5:

- During installation, the driver does not initialize. This prevents you from joining a domain.
- If you attempt to use Network Monitor or Performance Monitor to view network activity, it causes your system to stop responding (hang).
- STOP messages at bootup appear on systems with Pentium Write Back Cache enabled.

## CAUSE

The FLNK.SYS driver (version 1.16) has various problems. To determine the version number select the driver in File Manager and choose Properties from the File menu.

## STATUS

Microsoft has confirmed this to be a problem in Windows NT Workstation and Windows NT Server version 3.5. This problem was corrected in Windows NT version 3.51.
NOTE: The Windows NT 3.5 US Service Pack 2 help file (NT35SP2.HLP), and the version of this article on the April 1995 TechNet CD, erroneously state that this problem was corrected in the latest U.S. Service Pack for Windows NT version 3.5.
The third-party products discussed here are manufactured by vendors independent of Microsoft; we make no warranty, implied or otherwise, regarding these products' performance or reliability.

Additional query words: prodnt 3com 3 com

Keywords: kbnetwork KB123979