Windows 11 Home Cannot Manage old Seagate NAS Files

Hi, I've just bought a new Laptop with Windows 11 Home and I cannot manage the files on my old Seagate Personal Cloud NAS. My old Windows 10 machine works fine. I can see the NAS with File Explorer, and I can Map the Drive. I can login and manage the files if I connect using the drives IP address and login credentials. However, I want to manage the NAS via Windows. I read many so called solutions where I've enabled SMB access and via Powershell guest logins. The error message from Windows is saying I do not have permissions for this network resource. Can anyone offer any suggestions on a fix?

Thanks
Nick.