Most device do not have that ability. Most devices that support this are repeaters or extenders. They need the ability to be able to act as a client...ie they look like a pc. There is a small number of routers that have this function. You need to read the docuemtnation and see if your device has any ability to act as a repeater.
Hello,
My ask is how to connect two routers without cable no from LAN to LAN or LAN to WAN, but I want to connect without cable?
This is referred to as Bridge mode. It's kind of like AP, but in reverse where you are using the wireless signals to carry the data to a LAN port on the receiving end. With an AP, you are using ethernet LAN Ports to carry the data over to the wireless transmitter.
Router WiFi -> Bridge WiFi -> Bridge LAN Ports.
Be forewarned: If you have a different brand routers, it might not work. Some bridge mode implementations are proprietary. You should always buy from the same ecosystem (Manufacturer) when possible.
There are 2 types of bridge mode. He needs what is called client-bridge. Normal AP/bridge mode is very common, client-bridge mode is not.
I think there is a language barrier here. We need to clarify the terms.I connect with bridge mode second router with main router, but when I pull(removed) cable from Lan to Lan, don't work wifi but still bridge mode.