What steps should I take to restore my home NAS access following an upgrade to Windows 11 Pro 24H2?
What steps should I take to restore my home NAS access following an upgrade to Windows 11 Pro 24H2?
The term "unsecured guest" refers to everyone.
You are not supposed to be a guest.
You need to log in as an admin or another authorized user with proper login rights.
The NAS can be set up to allow access only to certain users or systems.
If the guest is not added, they shouldn’t have any access at all.
Not a Buffalo user.
I suggest creating a new thread to clearly address your questions about access permissions for the Buffalo NAS.
Forum = Storage.
So I think I solved the problem I encountered yesterday when setting up a new laptop... I have an older Buffalo NAS (it supports SMBv2)... On Windows 11 24H2, the Buffalo NAS Navigator would recognize the NAS on my network, but I couldn't browse it or map any drives to it. Windows 11 24H2 introduced some changes to the SMB security defaults, requiring security signatures and allowing insecure guest logins. If you open PowerShell (as an administrator) and run these two commands, you should be able to map your drives again... at least it worked for me:
Set-SmbClientConfiguration -RequireSecuritySignature $false
Set-SmbClientConfiguration -EnableInsecureGuestLogons $true
The following Microsoft TechCommunity article provided the solution and a clear explanation of what changed in 24H2:
Accessing a third-party NAS with SMB in Windows 11 24H2 may fail | Microsoft Community Hub
Changes to SMB security in the Windows 11 24H2 release preview could block access to third-party NAS appliances or other devices.
techcommunity.microsoft.com
You'll still need to ensure the correct SMB version is enabled for your NAS, likely SMBv1 is disabled by default in Win11.
Hope this helps if you're still facing issues.