I've a 3 router network wherein 1st router is at Ground floor - modem/router provided by ISP at LAN IP 192.168.1.1 (WIFI disabled) and DHCP pool size set to 2, 2nd router is too at Ground floor (WIFI enabled) with WAN at 192.168.1.2, LAN IP 192.168.50.1 with DHCP enabled and DHCP pool size set...