Windows Key + I
Select Network & Internet
Select Status
Go to bottom of list to select Network Reset

Regards,
Lee

Found that Win 10 has Reset Network Function
Did that and problem went away.

Lee

Found that the Master Browser is the Win7 machine Lee-PC

Samuria:
Thanks for the response.
Net Use works correctly. Computers are wired ethernet on 4 port router - no network switch
Don't know what you mean by Master Browser.

Lee

Am unable to ping the Win10 computer 192.168.0.25 from either of the other two other computers.
Am however able to do DIR \\192.168.0.25\c and see contents of hard drive

Ran NetBScanner anon...

I have 3 computers on LAN - Ethernet.
All computers in same workgroup
network discovery is ON
Password Sharing is off

Computer LEE-VISTA is Vista, LEE-PC is Win7 and LEE-HP is Win10
LEE-HP is...