WD Smart Ware does not see/recognise WD MyCloud

Hi, checked it further. WD MyCloud drive has now static IP. However, when I folded my laptop’s screen for the night and it hibernated (or whatever it does), the next day WD MyCloud was not visible in WD Smartware. It probably does the backup though, as I can see in task manager the WD SmartWare and WD Backup Engine running. 

Any ideas how to fix it - so that WD Smartware doesn’t drop WD MyCloud after laptop has been hibernated/closed?

Thanks