I have setup LAN IP Static details as per Seanie3080, and in Luci the DHCP & DNS as well as the Hostname tables as per Johnex

Still do not get any Client Names showing when I go to CLIENTS - only when I use DHCP to allocate an IP address does the name appear (tested a device with Static IP then DHCP allocated IP)

Advice would be gratefully accepted to show what I may be doing incorrectly.