what operating system are you using?
Are your computers sharing files/resources?
what are you trying to access?
when do you get the error?
- when you click on the icon for a computer?
- when you click on some files on the computer?
most likely you need to set up permissions for people to access those files, but if nothing is being shared then you wont be able to access anything.
Rignt click on a file and choose to share it on the network.
