So Samba is listening on all ports (from smb.conf)
Assuming your server is also the DHCP server, it is not setting the WINS server. Have you configured it in the webconfig?
Your Workgroup/Domain is set to CAT. What has been set in the Windows computer?
If you have the opportunity, can I suggest you come off the 192.168.1.0/24 subnet and also avoid 192.168.0.0/24. What is the output of "ifconfig | grep ^e -A 1"?