firewall problems

I have following problem, I can not play some files. The TV is disconnected from serviio (I have two samsung, 40C6000, 37D5500). But when I disable the firewall (eset smart security) then if I can play these files. It is as if the firewall rules work for some files and not for others. Any help?

[moltra]

Are all the files in the same Directory?

Can you post your serviio.log file