Problem with Addressables local hosting Mac

I am setting up a local host with the Addressables Hosting tab. While I am connected to my Wifi I get the error below and cannot click the enable box. When I setup a hotspot on my phone and connect my Mac...works perfectly. Also works when I turn my Wifi off. All I can think of is my IP address or perhaps IPV6? Any insight is appreciated. I am on Big Sur 11.1

SocketException: The requested address is not valid in this context
System.Net.Sockets.Socket.Bind (System.Net.EndPoint localEP) (at <ef151b6abb5d474cb2c1cb8906a8b5a4>:0)
System.Net.EndPointListener..ctor (System.Net.HttpListener listener, System.Net.IPAddress addr, System.Int32 port, System.Boolean secure) (at <ef151b6abb5d474cb2c1cb8906a8b5a4>:0)
System.Net.EndPointManager.GetEPListener (System.String host, System.Int32 port, System.Net.HttpListener listener, System.Boolean secure) (at <ef151b6abb5d474cb2c1cb8906a8b5a4>:0)
System.Net.EndPointManager.AddPrefixInternal (System.String p, System.Net.HttpListener listener) (at <ef151b6abb5d474cb2c1cb8906a8b5a4>:0)
System.Net.EndPointManager.AddListener (System.Net.HttpListener listener) (at <ef151b6abb5d474cb2c1cb8906a8b5a4>:0)
System.Net.HttpListener.Start () (at <ef151b6abb5d474cb2c1cb8906a8b5a4>:0)
UnityEditor.AddressableAssets.HostingServices.HttpHostingService.StartHostingService () (at Library/PackageCache/com.unity.addressables@1.16.16/Editor/HostingServices/HttpHostingService.cs:119)
UnityEditor.AddressableAssets.GUI.HostingServicesWindow.DrawServiceElement (UnityEditor.AddressableAssets.HostingServices.IHostingService svc, System.Collections.Generic.List`1[T] svcList) (at Library/PackageCache/com.unity.addressables@1.16.16/Editor/GUI/HostingServicesWindow.cs:342)
UnityEditor.AddressableAssets.GUI.HostingServicesWindow.DrawServicesArea () (at Library/PackageCache/com.unity.addressables@1.16.16/Editor/GUI/HostingServicesWindow.cs:292)
UnityEditor.AddressableAssets.GUI.HostingServicesWindow.OnGUI () (at Library/PackageCache/com.unity.addressables@1.16.16/Editor/GUI/HostingServicesWindow.cs:228)
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <9577ac7a62ef43179789031239ba8798>:0)
Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.
System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <9577ac7a62ef43179789031239ba8798>:0)
System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <9577ac7a62ef43179789031239ba8798>:0)
UnityEditor.HostView.Invoke (System.String methodName, System.Object obj) (at /Users/bokken/buildslave/unity/build/Editor/Mono/HostView.cs:381)
UnityEditor.HostView.Invoke (System.String methodName) (at /Users/bokken/buildslave/unity/build/Editor/Mono/HostView.cs:375)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition, UnityEngine.Rect viewRect) (at /Users/bokken/buildslave/unity/build/Editor/Mono/HostView.cs:351)
UnityEditor.DockArea.DrawView (UnityEngine.Rect viewRect, UnityEngine.Rect dockAreaRect) (at /Users/bokken/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:407)
UnityEditor.DockArea.OldOnGUI () (at /Users/bokken/buildslave/unity/build/Editor/Mono/GUI/DockArea.cs:396)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:293)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:508)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Action onGUIHandler, System.Boolean canAffectFocus) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:491)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, System.Boolean canAffectFocus) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:484)
UnityEngine.UIElements.IMGUIContainer.SendEventToIMGUI (UnityEngine.UIElements.EventBase evt, System.Boolean canAffectFocus) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:477)
UnityEngine.UIElements.IMGUIContainer.HandleEvent (UnityEngine.UIElements.EventBase evt) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/IMGUIContainer.cs:449)
UnityEngine.UIElements.CallbackEventHandler.HandleEventAtTargetPhase (UnityEngine.UIElements.EventBase evt) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/Events/EventHandler.cs:77)
UnityEngine.UIElements.MouseCaptureDispatchingStrategy.DispatchEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/Events/MouseCaptureDispatchingStrategy.cs:92)
UnityEngine.UIElements.EventDispatcher.ApplyDispatchingStrategies (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, System.Boolean imguiEventIsInitiallyUsed) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:310)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:275)
UnityEngine.UIElements.EventDispatcher.ProcessEventQueue () (at /Users/bokken/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:238)
UnityEngine.UIElements.EventDispatcher.OpenGate () (at /Users/bokken/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:203)
UnityEngine.UIElements.EventDispatcherGate.Dispose () (at /Users/bokken/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:44)
UnityEngine.UIElements.EventDispatcher.ProcessEvent (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:301)
UnityEngine.UIElements.EventDispatcher.Dispatch (UnityEngine.UIElements.EventBase evt, UnityEngine.UIElements.IPanel panel, UnityEngine.UIElements.DispatchMode dispatchMode) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/EventDispatcher.cs:159)
UnityEngine.UIElements.BaseVisualElementPanel.SendEvent (UnityEngine.UIElements.EventBase e, UnityEngine.UIElements.DispatchMode dispatchMode) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/Panel.cs:257)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/UIElementsUtility.bindings.cs:404)
UnityEngine.UIElements.UIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at /Users/bokken/buildslave/unity/build/Modules/UIElements/UIElementsUtility.bindings.cs:194)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at /Users/bokken/buildslave/unity/build/Modules/IMGUI/GUIUtility.cs:197)

 

I was trying Addressables using a domain name that resolves to IPv6 address, sadly Unity is ancient when it comes to it's internal domain resolving opting to only use IPv4, which is problem mattic when trying to connect to a server that only has IPv6 available. Unity needs to get with 2022 and stop being in 2006!