Second Raspberry Pi frontend url

Installation
1

My second raspberry pi is setup with home assistant. I get to the frontend of my main RPi using hassio.local:8123. How would I get to my second? I’ve tried typing the IP address with :8123 but no luck.

2

I ran into this problem. Had to change the listening port on the second pi to another port number. I used 8124. Then restart.

3

Change the port of the second Pi in configuration.yaml → 

http:
  server_port: 8124