Same problem here with my new Mycloud device, Firmware V2.
If you have a Mac or Linux box, there is a simple script solution. Just make sure that you can login with ssh. My script uses “expect”-shell, which is standard available on Mac and Linux. No idea about Windows.
OK, it comes here:
#!/usr/bin/expect
spawn ssh root@mycloud "halt -p"
expect "password:"
send "PASSWORD\n“;
interact
Just edit this script with the correct password and server name (IP address).
Make it executable with chmod 755.
This will shutdown the device cleanly.
To restart the device, you must power off/on. Why is there no switch??? 
