[Samba] smbc_opendir() is failing with "Connection timed out"

[naga_kishore_kommuri at yahoo.com]

Hi,
I'm using samba-3.6.7. 
smbc_opendir() is failing with "Connection timed out" error if I give hostname as argument. For example smb://hostname

But it is working fine if I give sharename. Ex smb://hostname/sharename
It is working fine if I give IP address. Ex : smb://IPaddress

Any clue?

thanks,
-Kish