Windows 10: PC freezes when accessing mapped one drive

Running Windows 10 PRO. Mapped one drive to a network drive on my PC e.g., ZMapping works. I then go into file explorer and click on the Z drive and go into one of the subfolders. When I click on a DOC or PDF to open it, the computer freezes up and have to power off computer.I have tried un-mapping and re-mapping, rebooting multiple times and get same result.This has been working fine for several weeks and problem only started yesterday.Have plenty of storage available, so it's not a storage issueWould be grateful for suggestions.

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Mapped Drives Issues

To clarify .... the issue is the Windows 10 OS. It is with Windows File Explorer. The Mapped drives used to appear in File Explorer's left panel list of drives and folders. Two days ago File explorer stopped show the mapped drives. so not they don;t appear in the list of Drives and folders.

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I did, it has no effect. I also check the NAS devices they support SMB 2.0. Also I have several other computers on my home network they work fine with the mapped drives and They do not have SMB 1 turned on. So it is something that happened to the computer in question.

 

I cannot re-map network drives that used to be mapped.

I am having difficulty re-mapping network drives that I used to be mapped to. I have a VAIO SX14 laptop running Windows 10 pro 21H1. I used to be able to access mapped drives on a Dell 7010 PC running Window 10 Pro and a Sony VAIO laptop running Windows 7 Pro. All three machines are WiFi connected to my network. I was out of the country recently for a few weeks and took my SX14 with me. I stayed in hotels so used their WiFi internet with my Nord VPN set to the USA. Since I arrived back in the USA, I can no longer open the mapped drives on the Dell or the Sony laptop.

1. I have turned off my VPN and Anti-Virus software and Windows Defender Firewall. Also I have checked all the usual settings including Internet Properties, Network and Sharing Center, and Advanced Sharing. But nothing worked.
2. I uninstalled the latest Windows 10 update, but still nothing changed.
3. I compared the settings on the Dell PC to my SX14 and all were the same.
4. When I browse for a folder when trying to map a network drive, the only thing that shows is the SX14 that I am trying to map from.

I can still access the Sony laptop from the Dell PC and vice versa, so I assume the network is OK. But neither machine can access the SX14 laptop and vice versa. When I open “This PC” the mapped network locations each shows a green check mark which changes in about one second to a red X. I must be overlooking something. Does anyone have any suggestions about where I should look next? I do have a recent Image of the SX14 drive created before I was out of the country but to restore it would be my LAST resort. - - - Updated - - - I wanted to post a few more pictures showing the settings, but they would not upload.

 

Connecting NAS - mapping of drives

OK ... step by step all worked. I have now mapped the 2 volumes as Y & Z and can access the files on them Any idea why the Command line would work yet the Easy Find Utility that has worked for years does not ?