Second router

Hi all, I am very new to networking and somewhat bewildered by it! I have a home network running on an EE Smarthub router with an IP range of 192.168.1.1 - .254. I want to add a second router using a different IP address range for all my IOT devices. I have bought a MikroTik hAP Mini for the second router. I was led to believe that connecting the WAN port of the second router to a LAN port on the first router or a network switch port would enable me to achieve my goal. I downloaded the Winbox software. I couldn’t access the Mini on its IP address of 192.168.88.1 but it was found in neighbors and I could access it using the MAC address. I had not realized that there were so many setting options.

Could someone help me please by explaining what I need to set up to achieve my objective. Most of my IOT devices would be wireless. I am not even sure what is the correct mode for my desired set up. I would like to be able to access the second network from devices on the first network.

I have bought a MikroTik hAP Mini for the second router. I was led to believe that connecting the WAN port of the second router to a LAN port on the first router or a network switch port would enable me to achieve my goal.

Hap mini has a default config of a router, so if you connect the eth1 port to your router and eth2 to your computer you should be able to connect…

I had not realized that there were so many setting options.

Well yes, there are many many many options…

I would like to be able to access the second network from devices on the first network.

You need a route for thar on your first router that should route the traffic destined to 192.168.88.0/24 through the WAN IP of the mini that will be 192.168.1.x/24…