I am new to fortinet and recently placed a fortinet device in my home network. It is a very simple setup to get me started and try more ambitious things later. The ISP router is having the WAN connection to the internet and the LAN side connects to the fortinet. All home devices are then connected to the LAN of the fortinet (no DMZ or other zones setup for now). With a simple allow for lan to wan rule in the firewall, all devices are able to communicate with the internet.
However, the IPTV box has stopped working, i am guessing here there is something to do with multicast that is getting blocked here. If I remove the fortinet between the home network and the ISP router, IPTV box works normally and all the channels can be viewed but as soon as the fortinet is brought back in it stops working.
Looking forward to get this to work and appreciate your help.