with NetworkDiscovery with the default gui when I start or listen for broadcasts i get:
NullReferenceException: Before using the library you should call Init() and do not forget to call Shutdown() afterwards
UnityEngine.Networking.NetworkTransport.CheckTopology (UnityEngine.Networking.HostTopology topology) (at C:/buildslave/unity/build/artifacts/generated/common/modules/UNET/UNETworkingBindings.gen.cs:363)
UnityEngine.Networking.NetworkTransport.AddHost (UnityEngine.Networking.HostTopology topology, Int32 port, System.String ip) (at C:/buildslave/unity/build/artifacts/generated/common/modules/UNET/UNETworkingBindings.gen.cs:422)
UnityEngine.Networking.NetworkTransport.AddHost (UnityEngine.Networking.HostTopology topology, Int32 port) (at C:/buildslave/unity/build/artifacts/generated/common/modules/UNET/UNETworkingBindings.gen.cs:408)
UnityEngine.Networking.NetworkDiscovery.StartAsClient () (at C:/buildslave/unity/build/Extensions/Networking/Runtime/NetworkDiscovery.cs:225)
UnityEngine.Networking.NetworkDiscovery.OnGUI () (at C:/buildslave/unity/build/Extensions/Networking/Runtime/NetworkDiscovery.cs:428)