@casino Checking “Block VPN, Proxy and Tor” will block Vuze. This is not a port forwarding or NAT issue.
Basically, Vuze makes various connections to random hosts at random ports. When you check “Block VPN, Proxy and Tor”, these outbound connections are blocked. You need to move the device that runs Vuze to a profile that does not enable “Block VPN, Proxy and Tor”.