Solved Not able to map shared drive to NAS

I just bought a new PC (refurbished) with Windows 11 24H2 installed, build info below. I am trying to map a network drive to my Buffalo NAS as I have established on an older PC running Windows 10. When I try to map the drive I receive odd error messages, similar to others on this forum. Unlike other users however, I can search for and set up a share with the other PCs on the network. I just can not map to the NAS. When browsing for the NAS, the PC does not find it. I'm trying to map using the dialog below. If I replace the server name with the IP address of the server, I get the same error message.



Using command prompt "Net View All" I get the following error


Using the "net use" command I get the same error as I do through the windows dialog.


I tried adding the registry variable as suggest in other threads and still no luck.


Just to double check, I cleared the mapping on my older PC with Window 10 and then re-established the mapping with no problems. So this seems to be an issue with Windows 11.

The Buffalo NAS is an older system. Is it possible there could be some other incompatibility with Win 11? or maybe I need to enable an additional service on the NAS?

Mapping a network drive is a rather basic function which has been supported for 30+years. I find it hard to believe this would not be possible with Windows 11

If anyone has any pointers or recommendations I would greatly appreciate it. Thanks

Have you enabled SMB In Windows features??

Try mapping using the NAS IP No which should be assigned a static IP.

I use a Buffalo LinkStation 220 NAS with 2 drives in it set as RAID 1. I first have to access the NAS by logging into it first then use Map Network drive in the context menu on This PC. The Buffalo Navigator software worked good.

Thanks Rollback_Jockey for the hint about the SMB protocol. My Link station is older and only supports SMBv1.0 Despite the security concerns, as a stop gap measure I enabled SMBv1 in WIN11 and then was able to map the drives as I had done on my other machine. Looks like ultimately I will need to get a new NAS which supports SMBv2 .

My NAS is rather ancient (DLINK DNS-320) but due to its containing nearly 5TB of movies I'll be keeping it.

So i think i figured out the issue, I ran into same problem today setting up a new laptop...... I have an older Buffalo NAS (at least it supports SMBv2)..... On Win11 24H2, the Buffalo NAS Navigator software would detect the NAS on my network, but i could not browse it or map any drives to it. Windows 11 24H2 introduced / changed some of the SMB security defaults requiring security signatures and insecure guest logins. If you open Powershell (run as Admin) and run the following 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 is where I finally found the solution and a good explanation of what changed in 24H2:


You'll obviously still need to make sure the right version of SMB is enabled for your NAS, I believe SMBv1 is disabled by default in Win11.

Hope this helps if it's still an issue for you.