First of all, thank you all for your support. Any comment will help.
I bougth a 4TB Mycloud some months ago and it works ok till now (althought sometimes it gets disconnected from my network without a reason for some seconds).
My major issue is that yesterday I connected an USB hub to the USB port. Then, I connected 5 hard drives to the hub.
The result is that MyCloud mounts only two of the five hard drives. Additionaly I can say that 3 of them are the same hard drive model and only one of them is reconigzed.
I have been searching in the forum and I realized that there are some topics with the same problem. But I am not sure if this problem has been solved.
Could someone tell me if I can do something to go over this?
Thanks in advace