Windows 10: NAS not visible

I am at a loss to understand why my NAS should be visible from Windows 7 machines and some Windows 10 machines but not from ALL Win 10 machines. I open file explorer and click on Network. It goes and searches for responses from devices. The other machines both real and virtual that are switched on show up but the NAS which is switched on and ready does not. If I do this from any of my Win 7 machines or my real Windows 10 machine the NAS shows up.
Can anyone suggest where I might look to see why it is not appearing?

I can ping the NAS from the Win10 machine which is not showing the NAS successfully.

:)

 

Missing NAS Disk access

It didn't survive the reboot !

The NAS is not visible in Network or File explorer and nor is the PC I'm actually using.

The Network Location for the NAS is available and works but this makes no difference to the items displayed in Network.

 

Network problem with additional IP address

I have a networking problem while using Windows 10 and NAS storage unit

When one IP address is set to Windows 10 home I can access NAS storage unit without any problems. When I add one more IP address NAS storage is visible on the network but it is showing an error – PATH NOT FOUND.

With the order PING of the NAS storage unit the address is responsive.

 

I have the same problem. Untill yesterday everything worked fine and after booting today a big problem.
I can ping by name and on ip adres.
I cannot see the NAS (i have 2, both different brands, none visible).
I can see other Windows 10 computers, but i cannot connect to shares.

Already tried an UTP cable instead of Wifi, did not work.
Tried several actions i found on the internet (registry changes about Lanman etc), also no result.
Removed TCPIP setting 'Windows network client' and installed again, still no result.
Changed workgroup to a not defined one, rebooted then back to the right workgroup and rebooted, Nothing.

Checked Windows updates, no updates installed.
Checked Firewall, IP adresses of NAS and laptop, Antivirus etc.

I cannot find what is wrong. *cry

 

I also checked the firewall my situation is slightly different as far as updates are concerned the machine that does not connect to the NAS was upgraded to the latest insider ring build 10547. I naturally though that this might be the cause but I also have a laptop which has been converted to Win 10 (a dual boot with Win 7) and upgraded to the same build and it is showing the NAS just fine <added> until it was rebooted. </added>
I am still puzzled and admit my lack of knowledge of internal systems to know where to try to find the cause.