Hello @Jos_Engelen ,
Are you now trying to add content to the SSD after formatting it and are having issues with the Samba share? According to your account profile, it looks like you have a Windows 11 PC, if you type the IP address/Storage/InternalStorage of the Nucleus into Windows Finder header/address bar, are you able to access the folder? Note, that certain versions of Windows 11 have SMBv1 disabled, in case this is applicable to your version, this thread discusses a workaround.