11:35:53 839	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:43:44 295	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:45:42 828	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
11:45:43 075	Error:EnumerateHub-->CreateFile failed,err=0x2
14:52:43 202	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
20:03:14 181	Error:EnumerateHub-->CreateFile failed,err=0x2
