UPnP: Enable or Disable

Should the router  UPnP be enabled or disabled

I think depending on which document you look WDmyCloud recommends both 

What is the word on that

Currently I have mine disabled  but should it be?

Thanks

Bruce

Some places it will say UPnP is a security risk …

It is often recommended to set a static IP, open ports manually etc. for stable access …

I know how to do this but doing it never worked, it would say that ports weren’t open, even when they were, and drive would often become inaccessible…

— So, in the end, I’ve enabled UPnP as that seems to be the only way to make it all works smoothly

mine is the opposite

works well disabled  !!