hap ac lite (LAN 192.168.88.1, dhcp 192.168.88.10-254) connected to internet,
hap lite as a second AP - it is connected to hap ac lite (Internet: 192.168.88.10; LAN 192.168.99.1, dhcp 192.168.99.10-254).
How to configure the second AP - hap lite - to be in the same LAN addresses as first AP (192.168.88.1/24) and use the same dhcp server (192.168.88.10-254)?
The PCs connected to second AP (using LAN ports or WiFi) should get the IP addresses from first AP and its dhcp server.
The example in the vlans shows how to connect two devices with smart managment, agreed it may be done all by different subnets I suppose.
I will watch your example
The simplest way is adding ether1 to bridge. Don’t forget to disable dhcp server and firewall on hap lite, that’s all. Also u can change dhcp client from ether1 to bridge.