09:02:26 522	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:42:49 613	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
14:42:49 881	Error:EnumerateHub-->CreateFile failed,err=0x2
19:01:00 045	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
