Existing network setup is ISP modem > Dell SonicWall TZ105 firewall (setup as DHCP server) > gigabit switch > WRT 1900AC (DHCP disabled). Other devices such as a network printer and two NAS devices are also connected to the gigabit switch. We are endeavouring to enhance wireless coverage in a fairly large two story building with complex infrastructure, e.g. concrete walls in certain spots.
Can a second router (a WRT 54g) be added to the gigabit switch (DHCP disabled, different IP but same SSID)?