Just by disabling “Drive Sleep” option under settings I have been able to lessen first 3 issues’ occurences.
1 - Error 500 (web admin panel is inaccessible)
2- EX4 won’t powerdown (keeps saying shutting down but does not actually shutdown)
3 - Network share isn’t accessible after a few hours
Set static ip to fix this issue
4 - Network loses connection
note - to help with speed in some cases you might want to try changing your network setting from “Auto” to “1000”
Disable media service or disable searching for photos by going to your http://[yourdevice]:9000
and in changing list of folders searched for media and making it search for videos or music only.
5 - Twonky keeps rescanning for media and resets from 0
I already posted a page with issues that are common http://community.wd.com/t5/WD-My-Cloud-EX4/How-I-fixed-some-of-the-problems-post-being-disgruntled/td-p/717044 and I have also posted solutions.