Thank you, but my router not support vlan feature. is there a mode for denied access from only subnet 192.168.1.x ? I have tried with firewall in, but not work.

Router H388x IP 192.168.1.1 Connected via LAN to an APoint RE450 in BR-lan mode with OpenWRT IP 192.168.1.2, creating a personal Wi-Fi add to lan DECO X50 Outdoor, in router mode, generating Wi-Fi...