u/Fragrant-Trade-252

After rebooting WS-C2960CX-8PC-L, I'm getting %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 Smart net. Please contact Cisco's Technical Assistance Center for more information on logs. Symptoms: no intervlan connection and amber system LED. Searching for exactly the same problem gave no results, but %ILET-1-AUTHENTICATION_FAIL seems to be a common problem in the 2960X series. How possible that it's exactly the same Cisco bug? And does anyone know a workaround for it? The hard-reset and OS upgrade didn't work...