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|Affected Product ID
||Incorrect license programmed on flexstack-plus module|
An incorrect license was programmed into a limited number of Cisco 2960X FlexStack-Plus modules (C2960X-STACK=). With the incorrect license, the FlexStack module does not pass the SmartChip authentication during boot up, so the module is not recognized or supported by the switch chassis.
Cisco has found that less than 0.03% of the C2960X-STACK= module installation base was programmed with the incorrect license during the manufacturing process.
When a Cisco Catalyst 2960X Series switch is booted up with an affected C2960X-STACK= module, there are two error messages that might appear.
Here is the first error message that can appear:
POST: ACT2 Authentication : Begin
POST: ACT2 Authentication : End, Status Passed FlexStack Module SmartChip
Here is the second error message that can appear:
%ILET-1-DEVICE_AUTHENTICATION_FAIL: The FlexStack Module inserted in this switch
may not have been manufactured by Cisco or with Cisco's authorization. If your
use of this product is the cause of a support issue, Cisco may deny operation of
the product, support under your warranty or under a Cisco technical support program
such as Smartnet. Please contact Cisco's Technical Assistance Center for more
In order to proactively determine whether a C2960X-STACK= module is affected by this issue, use the Serial Number Validation Tool for FN #63972.
If a C2960X-STACK= module exhibits abnormal behavior as per this Field Notice and is identified as Affected in the Serial Number Validation Tool, please contact TAC for Fix on Failure.
How To Identify Affected Products
In order to obtain the serial number of a C2960X-STACK= module, perform a physical inspection of the Serial Number label on the module:
For More Information
If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:
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