Excessive Network Retransmissions While Running CSNW

This article was previously published under Q196051
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256986 Description of the Microsoft Windows Registry
Client Services for NetWare (CSNW) may retransmit an NCP packet in 110 ms.The retransmission of 110 ms will occur in a network with a tick count of 2being announced.
Windows NT uses the TickCount in the NetWare routing packet as a round triptime. In reality, TickCount is the number of ticks it takes a packet toreach the remote destination. One tick equals one-sixteenth of a second.The tick out is used by Windows NT to calculate when to retransmit a packetbecause it did not receive a response.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:
Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem was first corrected in Windows NT version 4.0 Service Pack 5.
More information
A tunable parameter has been added to allow the user to increase the tickcount on a CSNW client. This parameter will add a user specified number ofticks to the tick count on a client. This user specified value will beadded to all tick counts on a system. This will increase the amount of timeit takes for Windows NT to retransmit a packet.

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

  1. Start Registry Editor and go to the following subkey:
  2. Choose Add Key from the Edit menu and use the followinginformation:
    Value Name: TickCountModifierData Type: REG_DWORDValue: 1 to 255 Value that the tickcounts should be increased

Article ID: 196051 - Last Review: 11/02/2013 22:41:00 - Revision: 3.0

Microsoft Windows NT Workstation 4.0 Developer Edition, Microsoft Windows NT Server 4.0 Standard Edition

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