Event ID - 4

Event Id4
SourceSNA Server
Description(1133) Message Sequence Error
Event InformationAccording to Microsoft :
CAUSE:

A packet arrives at the SNA Server link service that is corrupt, causing a sequence number to be skipped. Because the next packet that arrives has a sequence number that is not one greater than the previous, SNA Server sends an UNBIND to the host with sense code 2001, which means there is a sequence error.

RESOLUTION:
The teaming function for the adapters that are bound to the DLC must be configured for Fault Tolerance mode, rather than Fast Ether Channel. Disable teaming for the DLC, and use a single NIC for the SNA Server-to-host link.
Reference Links SNA Server event IDs 4, 13, and 38 message sequence errors (SENSE 2001) occur

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