I have a large amount of files to transfer to the MyCloud device so I connected a USB drive to it. After that I tried to access the MyCloud device using my browser. This was impossible. The page loaded never finished loading. Chrome dev tools reported that some connections to the device were being refused.
The desktop application could still connect though, so I used it to copy a folder from the USB drive to a folder on the MyCloud drive. The folder I was trying to copy has > 10GB of data and 1000s of files. At first the copy seemed to be working, but then the desktop application reported an error that the copy failed. Some files were copied though. I could see that the target folder was created and that it had files in it. And from that point on the desktop application showed a spinner icon on that newly created folder. I’m not sure what it means though.
I decided to come back later in case it was still copying files. So I let my laptop go to sleep. Hours later when I woke it up I was no longer able to connect to the MyCloud device using the desktop application. It reported “no device found” when I scanned the network. And the web access completely stopped working. All connection attempts resulted in “connection refused”.
Note that my MyCloud device has a static IP, so the issue is not the IP address changing. And it was on the network still. The device was still listed as active on my router’s status page.
Giving up, I unplugged the USB drive from the MyCloud device. To my surprise I was immediately able to connect to the MyCloud device again over the network, both with a web browser and with the desktop application.
It seems like others are having similar issues. I wanted to post this as a reply on the thread about the USB drive with time machine causing problems, but the reply button on that thread is disabled.
From the web dashboard:
Firmware version: v04.01.02-417
I still can’t connect to any network shares on the device using windows explorer.
And I just remembered… Before plugging the USB drive into the MyCloud I wasn’t able to connect to the device at all. I had to power cycle it to restore access. It had been several weeks since I accessed it. My power went off briefly about a week ago, so the device restarted since I last accessed it, but as I already mentioned the IP address stayed the same.
These connection issues concern me a lot. MyCloud runs linux. A properly configured linux-based NAS setup shouldn’t have connection issues. Either something is improperly configured or there are hardware issues. Hopefully it’s the former and the next firmware release will fix it.
Restarting the device fixed the windows explorer access. Now I’m just copying all the files over the network with the usb drive plugged into my computer. I’ll let it run overnight.