Hello I have a 2960x switches that on 4 of these switches after the IOS update to the latest version (15.2(7)E4) of Cisco gives the following error, I do not even work with the previous version
Jun 27 16:37:16: %ILET-1-AUTHENTICATION_FAIL: This Switch may not have been manufactured by Cisco or with Cisco's authorization. This product may contain software that was copied in violation of Cisco's license terms. 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 information.