Added a second network but it's not working (RESOLVED)

I have a very simple HOME network (10.10.10.0/24, gateway 10.10.10.1, DHCP 10.10.10.1) with all of the traffic from the one port is NATted to the WAN port. That works great and everyone is happy. I now added a second network called TEST on an separate port with a separate DHCP server (172.16.20.0/24, gateway 172.16.20.1, DNS 172.16.20.1). The computers on the TEST network are able to get their dynamic IP from the DHCP server but I’m unable to connect to the internet nor to ping the gateway (172.16.20.1) nor any IP outside the LAN. I identified both the Home and TEST network IP ranges on a firewall rule as “Allow to router”. Essentially the TEST network configuration should be the same as the HOME network except for the different IP ranges. I don’t have a bridge on the HOME network port and internet traffic is NATed to the devices so I didn’t put a bridge on the TEST network neither since that worked for the HOME network.
I would appreciate any ideas as to what you think that I may have done wrong. Thank you

You probably haven’t added this Test network to the LAN Interface List.
Can you share your config to check:

/export file=anynameyoulike

Be sure to remove serial and any other private information.

I really appreciate your assistance. I added TEST network to the LAN interface list and it's still not working so below is the config file. In the config file, the HOME LAN works, what I referred to TEST LAN is actually DEV LAN in the configuration and that's what's not working. PROD LAN isn't used nor tested yet and it's probably not working since it was configured just like DEV LAN.

Thank you!!!

# CONFIGURATION WAS DELETED FOR CONFIDENTIALITY REASONS

BINGO!!! I found the mistake. Looking at the configuration text file, I was able to closely compare line by line the HOME network configuration to the DEV network and found that when I gave the IP address 172.16.100.1 to the port, I forgot to add /24 afterward.

The issue is resolved.