diff --git a/Assets/Mirror/Core/HostMode.cs b/Assets/Mirror/Core/HostMode.cs
index 0b2d8b35d..e5bb2c056 100644
--- a/Assets/Mirror/Core/HostMode.cs
+++ b/Assets/Mirror/Core/HostMode.cs
@@ -1,6 +1,8 @@
 // host mode related helper functions.
 // usually they set up both server & client.
 // it's cleaner to keep them in one place, instead of only in server / client.
+using System;
+
 namespace Mirror
 {
     public static class HostMode
@@ -39,19 +41,8 @@ public static void InvokeOnConnected()
             ((LocalConnectionToServer)NetworkClient.connection).QueueConnectedEvent();
         }
 
-        // calls OnStartClient for all SERVER objects in host mode once.
-        // client doesn't get spawn messages for those, so need to call manually.
-        // public because NetworkServer.ActivateHostScene was public before too.
-        public static void ActivateHostScene()
-        {
-            foreach (NetworkIdentity identity in NetworkServer.spawned.Values)
-            {
-                if (!identity.isClient)
-                {
-                    // Debug.Log($"ActivateHostScene {identity.netId} {identity}");
-                    NetworkClient.CheckForStartClient(identity);
-                }
-            }
-        }
+        // DEPRECATED 2023-01-28
+        [Obsolete("ActivateHostScene did nothing, since identities all had .isClient set in NetworkServer.SpawnObjects.")]
+        public static void ActivateHostScene() {}
     }
 }
diff --git a/Assets/Mirror/Core/NetworkManager.cs b/Assets/Mirror/Core/NetworkManager.cs
index 270bc9b55..5b536958f 100644
--- a/Assets/Mirror/Core/NetworkManager.cs
+++ b/Assets/Mirror/Core/NetworkManager.cs
@@ -523,7 +523,6 @@ void FinishStartHost()
             SetupClient();
 
             networkAddress = "localhost";
-            HostMode.ActivateHostScene();
             RegisterClientMessages();
 
             // call OnConencted needs to be called AFTER RegisterClientMessages
diff --git a/Assets/Mirror/Tests/Editor/NetworkServerTest.cs b/Assets/Mirror/Tests/Editor/NetworkServerTest.cs
index 5642f6611..0f6d5b90f 100644
--- a/Assets/Mirror/Tests/Editor/NetworkServerTest.cs
+++ b/Assets/Mirror/Tests/Editor/NetworkServerTest.cs
@@ -839,28 +839,6 @@ public void SendCommand_RequiresAuthority()
             Assert.That(comp.called, Is.EqualTo(0));
         }
 
-        [Test]
-        public void ActivateHostSceneCallsOnStartClient()
-        {
-            // listen & connect
-            NetworkServer.Listen(1);
-            ConnectClientBlockingAuthenticatedAndReady(out _);
-
-            // spawn identity with a networkbehaviour.
-            // (needs to be in .spawned for ActivateHostScene)
-            CreateNetworkedAndSpawn(
-                out _, out NetworkIdentity serverIdentity, out OnStartClientTestNetworkBehaviour serverComp,
-                out _, out _, out _);
-
-            // ActivateHostScene calls OnStartClient for spawned objects where
-            // isClient is still false. set it to false first.
-            serverIdentity.isClient = false;
-            HostMode.ActivateHostScene();
-
-            // was OnStartClient called for all .spawned networkidentities?
-            Assert.That(serverComp.called, Is.EqualTo(1));
-        }
-
         [Test]
         public void SendToAll()
         {