Can't access workgroup

When I try to explore my network using Dolphin with smb:/ I get the message


Unable to find any workgroups in your local network. This might be caused by an enabled firewall.

Yet I still can access particular machines on the net with something like this:

smb://panos

which shows the folders available on panos.

I have already set the workgroup in the Samba configuration. Am I missing something?

Check this
Linux HOWTOs and Tutorials: Suse Linux 10.0, 10.1 openSUSE 10.2, 10.3, 11.0, 11.1

I have a feeling there has been an issue with the firewall. Hang on, I just spotted something

Opening Samba ports in the Firewall in openSUSE 11.1 - openSUSE Forums