无线控制器license失效

有问题补充：dis license 命令，没有返回信息， 在flash下能看到这个license 文件。这个文件的MD5和备份的文件的MD5一致。

问题补充：出现故障前无任何操作。 H3C WX2560H V500R001B64D016SP2102 Comware V700R001B64D016SP2102 dis license device-id SN: 219801A0WF9188Q00028 SN CHECK_SUM: C12B4512 Device ID: flash:/license/219801A0WF9188Q00028.did [WX2560H]license activation-file install flash:/license/219801A0WF9 188Q000282018093019285123593.ak This operation might take some time. Do not perform any other operations until t he operation is completed or a failure message is displayed. Please wait...Faile d. Invalid activation file. dis license （该命令无任何回显信息） dis wlan ap all Total number of APs: 6 Total number of connected APs: 0 Total number of connected manual APs: 0 Total number of connected auto APs: 0 Total number of connected common APs: 0 Total number of connected WTUs: 0 Total number of inside APs: 0 Maximum supported APs: 128 Remaining APs: 128 Total AP licenses: 0 Remaining AP licenses: 0 Sync AP licenses: 0