What about these settings from your basic network settings page?
Enable DHCP Server:
DHCP IP Address Range: to
DHCP Lease Time: (minutes)
Always broadcast: (compatibility for some DHCP Clients)
NetBIOS announcement:
Learn NetBIOS from WAN:
Enable DHCP Server: checked
DHCP IP Address Range: 10.0.0.100 to 10.0.0.199
DHCP Lease Time: 1440
Always broadcast: checked
NetBIOS announcement: (not checked)
Learn NetBIOS from WAN: (not checked)
NetBIOS Scope: (empty, grayed out)
Learn NetBIOS from WAN: (mixed-mode, grayed out)