09:49:16 475	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
10:14:08 528	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
10:20:08 111	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
10:56:50 428	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
17:30:50 246	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
19:09:34 320	Error:EnumerateHubPorts-->CreateFile failed,err=0x2
19:09:34 931	Error:EnumerateHub-->CreateFile failed,err=0x2
