Windows 10: KB5022913 - Cumulative Update Breaks Access to Synology NAS & Slow File Access

Effective immediately after the install of 2023-02 Cumulative Update for Windows 11 Version 22H2 for x64-based Systems KB5022913, I have lost access to my Synology NAS file server. The NAS is setup using SMB2 or higher and accessible through a workgroup. Nothing has changed on the Synology drive. After the MS update, I am prompted to enter network credentials, I enter the proper credentials, and then prompted with the following dialog box."\\servername is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if y

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Windows 10 File Explorer cannot access Synology NAS

I am using a HP laptop with Windows 10 Home and suddenly over the last several days a Synology NAS cannot be accessed from the laptop.

More information:

The version of Windows 10 Home - 1803

I have two other PC in the house and both can access the Synology NAS

I also have several Android tablets - they can access the NAS

On the laptop (with the issue) I also have a Synology management software product - It CAN access the NAS and open files

I originally mapped the NAS several months ago on the laptop and the mapped drives worked as expected until yesterday,

Yesterday I started getting messages saying "… the network path was not found." every time I tried to access/map the NAS

After several reboots of the laptop (yesterday) I was finally able to map the NAS, but only by typing in "\\ (NAS Name) \" before I started the mapping process.

This morning the same mapping (that worked yesterday evening) is not working and giving the same error message I saw yesterday morning.

Just to recap

Running laptop - windows 10 Home (1803)

Mapped NAS drives worked fine until yesterday

Synology management software on same PC can access the NAS and open files

Several other PCs can open files

I was able to re-establish connections yesterday by specifying the NAS name when I restarted the mapping

Today the mapping does not work (again).

 

Getting access to my data on Synology NAS

Hi, I have a problem with my Synology DS211j – please any help would be appreciated:
I bought the Synology NAS about a year ago but after setting-up the NAS I had a stroke :-(.
I am now trying to re-lean my NASs but am struggling with my Synology:
I can see the NAS has two disk – a 1Gb disk “Not installed”, and a 2Gb disk “Installed”. As I think I should have some important data, I need to work out what I have on the 2Gb disk or possible even on the 1 Gb disk?
So the 2Gb disk says it is installed but I don’t know how to get to the data from the disk (and I’m trying to be careful so that I don’t lose the data)?
ny advise on the steps on get ting access to the date would be really appreciated!

 

No longer can access my Synology NAS

I can no longer access my Synology NAS through File Explorer or assign a drive letter to it via "net use" on two of my computers. I recently removed SMBv1 from them. A third computer can see the NAS as I have not uninstalled SMB1 from that yet. Is there some workaround to get the two non-SMBv1 computers to recognize the NAS as I know SMBv1 is unsafe and will eventually go away?

JohnD