11:03:57 513	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
13:31:45 852	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:49:57 026	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:28:33 276	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
