In an iOS network extension setup as a Packet Tunnel. I am accepting packets in using NEPacketTunnelFlow and open a NWConnection up to the destination like so let parameters = .quic(alpn: []) let connection = NWConnection(to: .hostPort(host: host, port: port!), using: parameters) but my state handler is never receiving the .ready state. My NWConnection code works fine for TCP and DNS using let parameters = .tcp // OR let parameters = .udp On my NWConnection state handler I am receiving .waiting with an error of dns. I am testing quic by navigating onto the Facebook app and with wireshark intercepting the traffic I can see the DNS queries resolving I have NEDNSSettings applied to my NEPacketTunnelNetworkSettings Is my issue to do with not passing in the alpn value or is there an extra permission/setting I am missing? I have not found a value which changes the outcome at all. I have tried following [https://developer.apple.com/videos/play/wwdc2021/10094/) but no success.