View shared files of a Windows 7 machine on a LAN

It is not reliable.

Sometimes making an RDP to that computer is needed before the share files can be accessed.  Very strange.

A program may have to try accessing the shared files twice before the success.

Disabling firewall may help.

Tips from a Microsoft engineer:

 

First of all, please try to ping the machine both with IP address and machine name.

Try to use the IP address to access the machine`s shared folder from Windows Explorer.

Run the following command line to reset the TCP/IP stack.

ipconfig /flushdns (Clear the dns cache)

nbtstat -RR (release and refesh NetBIOS names)

netsh int ip reset (reset ip settings)

netsh winsock reset (Reset Winsock Catalog)

Reboot