08:59:39 129	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
09:19:46 517	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
10:36:17 079	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
10:42:27 137	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
15:14:16 794	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
17:37:40 533	Error:EnumerateHubPorts-->DeviceIoControl failed,err=0x48f
