First of all, it is not recommended to use blank password or no password.
Can you ping each other by IP? If not, double check the firewall. If yes,
can you ping by name?
Vista Password Issues
Can't enable/disable Vista Password Protected Sharing · Vista can open
but save - access denied · Vista can't create file: Make sure file name are
Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
How to Setup Windows, Network, VPN & Remote Access on
"tektron" <firstname.lastname@example.org> wrote in message
> Hi - I operate Vista Ult. 32 on my laptop and desktop. Both are on the
> same workgroup. I have a number of external drives connected to my
> desktop and a printer that I want to share with my laptop. Problem is
> that neither computer is visisble to the other. They are both set to
> "private", the drives and folders on my desktop are all set to share,
> there is no password controls on any user accounts and file sharing, etc
> is all enabled.
> This has alwas worked in the past but then suddenly the visibility of
> each computer has vanished and so, obviously has the ability to share
> files. Both PCs are on the same BT Home Hub Router. I use AVG 8 with
> firewall on both computers.
> I would like to set up the external drives as network drives, enable
> file sharing in the public folders, and in limited circumstances share
> individual folders. But I can't get past lack of any visibility on my
> network map. What gives?