一臺2960 交換機 IOS 從c2960-lanbase-mz.122-35.SE5.bin 升级到c2960-lanbasek9-mz.122-55.SE7.bin 以后就开始报错了！哪位大神可以帮忙解决一下！报错信息：%ILET-1-AUTHENTICATION_FAIL: This Switch may not have been manufactured by Cisco or with Cisco's authorization. This product may contain ...