WD Sync - no data storage found

Fresh Windows 10. First time connection worked and wd sync worked. After day or two have only ifno - no data storage found. Allways go via internet. login and pass works on mycloud.com. Only antyvir is standard windows one. Anyone can help?
My Cloud gen2 3TB connected properly in an office (100km away)

Hello Big_Muzzy,

You can refer the link mentioned below and follow the instructions given in order to troubleshoot for the issue.