problem with networking computers.......

i get this error "(my other computers name) is not accesible. You might not have permission to use this network resource.". what should i do? both are ntfs(i did have one fat32 and the other ntfs. it let me into the one that was fat32 from the ntfs one.) i changed them and now both are ntfs. i am thinking i should change both to fat32, but my buddy has a network that both computers are ntfs. HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

You have to add the IP of the router and the internal IP range of the router to each computer's firewall. Then you will be able to see the shared folders on each computer from one another.... the file system of the hard drives makes no difference.