Not shown in network - behind FritzBox and no Internet

I’m frustrated.

I’m using FritzBox and connected WD MyCloud via LAN cable. But I have very bad Internet connection, so I want to use local network. NAS configuration is made.

By typing the local IP adress in the browser, it shows: {“key”:“notFound”,“message”:“Not Found”}
MyCloud is never seen in network connection. I’m using WLAN to router.

The with lamp / LED blink slowly.I pushsed the button sometomes. It goes out, and in This status only.

The My cloud only appears, when the internet connection is up - every week one times.

Now I can reach Public Folder with IP Or Name (MYCLOUD-07147). But no more…

It works!

Put off the energy cabel whole night and restart router.

I don’t know what’s happen! Maybe a ghost… :wink: