NOOB: Help to let 2 different subnet talk to each other

Hi

I have the Fortigate E80. Here is my set up:

1. Interface WAN1 - Internet

2. Interface Port 1 (192.168.1.1/255.255.255.0) DHCP - connected to CISCO Switch -> *Synology NAS 192.168.1.129 3. Interface Port 2 (10.10.7.1/255.255.255.0) DHCP - connected to Switch -> *Samsung TV 10.10.7.3 4. Firewall (1) Access Internet (2) Internal Network I can access internet from both Synology NAS and Samsung TV but I can't get the Samsung TV to detect the Synology NAS. I already have an Internal Network firewall with all sources, all destination, all service, accept. I tried both NAT enabled and disabled but still can't get them to talk to each other. What am I doing wrong here? Hope to hear from the experts soon.

Many thanks!