So what you are saying is that two of the computers on your network cannot 'see' or communicate with each other? What happen if you ping each other using both the network name and ip address?
Can you confirm that both computers have been configured to allow file and printer sharing and that Network Discovery is enabled?
Also provide the results of the ipconfig /all command for both:
http://www.techsupportforum.com/forums/f138/how-to-run-an-ipconfig-all-command-655357.html
Can you confirm that both computers have been configured to allow file and printer sharing and that Network Discovery is enabled?
Also provide the results of the ipconfig /all command for both:
http://www.techsupportforum.com/forums/f138/how-to-run-an-ipconfig-all-command-655357.html