[redglory]

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Have you set permissions on your firewall ?

I use Hanewin NFS Server on Win10 Pro and I had to open ports explicitly for it to be accessible from other Lan Ips besides server PC. 

Yes i did add an exception for winnfsd.exe in Windows Firewall 

Have you set your firewall exception for private network ? Do you now what ports winnfsd listens to? Try to explicitly add exceptions for that ports and try again to mount nfs shares from your other machine on your network.