This article was previously published under Q219383
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When the SPX protocol is used on an adapter driver that is NDIS 4.0 compliant, a STOP 0xA may occur in the NDIS media access control driver.
Nwlnkspx.sys allocates a memory block for the NDIS packet. However, the flag field of the packet is garbled because it is not initialized; therefore, the NDIS media access control driver is unable to decide if OobData is valid or not.
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:
152734 how to obtain the latest windows nt 4.0 service pack
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: