DnsMAsq and Samba

Question

About dns-masq config on tomato or alike.

I have two networks on the same router. IE: 192.168.1.1 (br0) and 192.168.2.1 (this last is is for guest only and linked with br1)

This is my current custom configuration without domain=lan.domain.net

local=/lan.domain.net/
domain-needed
bogus-priv
strict-order
no-hosts
expand-hosts
cache-size=2048
log-async=25

Box is W10 with SMB1 enabled. And NSLOOKUP...

C:\Users\Linuxser>nslookup router
Server:  UnKnown
Address:  192.168.1.1

Name:    router
Address:  192.168.2.1

Why dns-masq does not reply to nslookup that router is at 192.168.1.1 which is on dhcp range of my current pool?

192.168.2.1 is the guest network dhcp, not router´s ip

Why Server says: Unknown? if router's name is already set

I also have one disk drive attached to usb port shared over the network but I can't make samba browsing works if "domain=lan.domain.net" is added on config. Interesting, only router share is affected. Browsing to any other Windows shares just works with and without "domain=lan.domain.net".

However, accessing router's share does work fine by manually writing router's ip or by changing dns-masq config to

domain=.lan.domain.net.

But, If I do that (adding the .) nslookup stop working. Is there any way to appedn the . only for 192.168.0.1 ?