Thank you for your reply.
192.168.1.0 is now a local for the SME. The network shares are still not available. Which ports do I need to open for them? (Samba: 137, 138, 139 and 445)?
One more question: which address do I use for the DNS server? 192.168.3.2? 192.168.1.0 cannot find the server under the servername or workgroupname.
Best Regards