Nbf Received an Unexpected FRMR Packet in Event Viewer (103154)


The information in this article applies to:

  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Workstation 3.51
  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Server 3.5
  • Microsoft Windows NT Server 3.51
  • Microsoft Windows NT Server 4.0
This article was previously published under Q103154
The following error may occur in the event log when a logical link connection (LLC) entity receives an invalid data unit:
Nbf received an unexpected FRMR packet from a remote computer.


FRMR is the Frame Reject frame sent by the NetBEUI Frames (NBF) LLC layer when one of the following conditions causes a data unit to become invalid:

  • Invalid sequence number
  • Invalid presence of an information field
  • Maximum allowable length for an LLC data unit is exceeded
These errors cannot be corrected by retransmission. In response to the FRMR frame, the workstation sends a Disconnect (DISC) command to terminate the link connection. The workstation may then reestablish the connection.
Modification Type:MajorLast Reviewed:5/6/2003
Keywords:kbnetwork KB103154
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