A.J. Bonnema wrote:
Possibly I had the same problem as you did. In my case the internal (IPtables) firewall of the machine running Samba was active and blocking all requests.
In your case maybe the other PC (or PCs) might be blocking the necessary ports (I think it was 138 or 139, don't remember which).
That would be 137, 138 AND 139
Regards, Ed.