Processed an NCP with a bad subfunction length

In Netware Monitor, I see the following message:
"Processed an NCP with a bad subfunction length ,
Station xx (NCP 23 121"

By using the Sniffer, the packet that triggers the error is  
displayed as a :"Finishing Servicing Queue Job Request", and
there is no indication of an error.

What is the problem, and how can I remedy it?
courdAsked:
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brosenb0Commented:
The packet is definitely bad.  What version of NetWare on the server ?  This was a known problem with NetWare v4.11 an if that's what you're running, you should patch the server with IWSP5B from support.novell.com.  Try and upgrade the server's LAN driver and/or swap the NIC for another brand/model.
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jwillekeCommented:
Need more inf. Does not imply that the packet is bad, just that the server does not understand the subfunction.
What Client?
What Servers?
Here are two issues I have seen:
1. Rights.exe with the /i parameter builds the NCP packet (NCP 22 50) incorrectly.
2. Older VLM's are known to cause bad NCP messages.
-jim
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courdAuthor Commented:
This problem was solved by updating the code in the print servers.


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brosenb0Commented:
So the print server was sending bad packets then
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