Hello Everyone,
I Had the same problem. I fixed it partly in the Qnap Firewall. i went in Firewall profiles, in my active profile, all in the bottom (any port, any protocole) i have changed for "autorised".
I had to be able launched Reilio succesfully. Next i went back to the Qnap Firewall to to put it back to the way it was before with "refused" on the same place, and resilio still works for a while, untill the firewall check it. But it give us time to configure Resilio or Qnap Firewall.
Hope it will continue and helps you to solve this problem.
Now i need to know if have to change port in Resilio settings or change something and how to do it in Qnap firewall. (add a rule for port 14680).
Thanks for help.