diff --git a/SteamTransport/Util.cs b/SteamTransport/Util.cs
index 2d1c2d19..8059f9fb 100644
--- a/SteamTransport/Util.cs
+++ b/SteamTransport/Util.cs
@@ -71,7 +71,7 @@ public static class Util
 		if (transport.DoFakeNetworkErrors)
 		{
 			var floatHandle = GCHandle.Alloc((float)50, GCHandleType.Pinned);
-			var intHandle = GCHandle.Alloc((int)500, GCHandleType.Pinned);
+			var intHandle = GCHandle.Alloc((int)100, GCHandleType.Pinned);
 
 			// global scope = dont apply to connection
 			SteamNetworkingUtils.SetConfigValue(
@@ -88,101 +88,66 @@ public static class Util
 				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
 				floatHandle.AddrOfPinnedObject()
 			);
-			/*
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketLoss_Send,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_float = 50
-				}
-			});
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketLoss_Recv,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_float = 50
-				}
-			});
 
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketLag_Send,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Int32,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_int32 = 500
-				}
-			});
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketLag_Recv,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Int32,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_int32 = 500
-				}
-			});
+			SteamNetworkingUtils.SetConfigValue(
+				ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketLag_Send,
+				ESteamNetworkingConfigScope.k_ESteamNetworkingConfig_Global,
+				IntPtr.Zero,
+				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Int32,
+				intHandle.AddrOfPinnedObject()
+			);
+			SteamNetworkingUtils.SetConfigValue(
+				ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketLag_Recv,
+				ESteamNetworkingConfigScope.k_ESteamNetworkingConfig_Global,
+				IntPtr.Zero,
+				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Int32,
+				intHandle.AddrOfPinnedObject()
+			);
 
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketReorder_Send,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_float = 50
-				}
-			});
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketReorder_Recv,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_float = 50
-				}
-			});
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketReorder_Time,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Int32,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_int32 = 500
-				}
-			});
+			SteamNetworkingUtils.SetConfigValue(
+				ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketReorder_Send,
+				ESteamNetworkingConfigScope.k_ESteamNetworkingConfig_Global,
+				IntPtr.Zero,
+				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
+				floatHandle.AddrOfPinnedObject()
+			);
+			SteamNetworkingUtils.SetConfigValue(
+				ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketReorder_Recv,
+				ESteamNetworkingConfigScope.k_ESteamNetworkingConfig_Global,
+				IntPtr.Zero,
+				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
+				floatHandle.AddrOfPinnedObject()
+			);
+			SteamNetworkingUtils.SetConfigValue(
+				ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketReorder_Time,
+				ESteamNetworkingConfigScope.k_ESteamNetworkingConfig_Global,
+				IntPtr.Zero,
+				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Int32,
+				intHandle.AddrOfPinnedObject()
+			);
+
+			SteamNetworkingUtils.SetConfigValue(
+				ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketDup_Send,
+				ESteamNetworkingConfigScope.k_ESteamNetworkingConfig_Global,
+				IntPtr.Zero,
+				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
+				floatHandle.AddrOfPinnedObject()
+			);
+			SteamNetworkingUtils.SetConfigValue(
+				ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketDup_Recv,
+				ESteamNetworkingConfigScope.k_ESteamNetworkingConfig_Global,
+				IntPtr.Zero,
+				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
+				floatHandle.AddrOfPinnedObject()
+			);
+			SteamNetworkingUtils.SetConfigValue(
+				ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketDup_TimeMax,
+				ESteamNetworkingConfigScope.k_ESteamNetworkingConfig_Global,
+				IntPtr.Zero,
+				ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Int32,
+				intHandle.AddrOfPinnedObject()
+			);
 
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketDup_Send,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_float = 50
-				}
-			});
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketDup_Recv,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Float,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_float = 50
-				}
-			});
-			result.Add(new SteamNetworkingConfigValue_t
-			{
-				m_eValue = ESteamNetworkingConfigValue.k_ESteamNetworkingConfig_FakePacketDup_TimeMax,
-				m_eDataType = ESteamNetworkingConfigDataType.k_ESteamNetworkingConfig_Int32,
-				m_val = new SteamNetworkingConfigValue_t.OptionValue
-				{
-					m_int32 = 500
-				}
-			});
-			*/
 			floatHandle.Free();
 			intHandle.Free();
 		}
diff --git a/SteamTransportTest/Program.cs b/SteamTransportTest/Program.cs
index d5f2fc10..abd0ba6e 100644
--- a/SteamTransportTest/Program.cs
+++ b/SteamTransportTest/Program.cs
@@ -73,12 +73,13 @@ public static class Program
 		transport.TestIpAddress = "127.0.0.1:1234";
 		// make timeout for client detecting server drop different than timeout for server detecting client drop
 		transport.Timeout = 5000;
-		transport.DoFakeNetworkErrors = false;
+		transport.DoFakeNetworkErrors = true;
 
 		transport.OnServerError = (conn, error, s) => Console.Error.WriteLine($"ERROR {conn} {error} {s}");
 		var theConn = -1;
 		transport.OnServerConnected = conn => theConn = conn;
-		transport.OnServerDataReceived = (conn, bytes, i) => Console.WriteLine($"RECV {conn} {bytes.Join()} {i}");
+		transport.OnServerDataSent = (conn, bytes, i) => Console.WriteLine($"SEND {conn} {i} {bytes.Join()}");
+		transport.OnServerDataReceived = (conn, bytes, i) => Console.WriteLine($"RECV {conn} {i} {bytes.Join()}");
 
 		transport.ServerStart();
 
@@ -94,7 +95,9 @@ public static class Program
 					switch (Console.ReadKey(true).KeyChar)
 					{
 						case 'q':
-							running = false;
+							// running = false;
+							transport.ServerDisconnect(theConn); // mirror does this for us
+							transport.ServerStop();
 							break;
 						case 's':
 							transport.ServerSend(theConn, new ArraySegment<byte>(new byte[] { 1, 2, 3, 4, 5 }, 1, 5 - 1));
@@ -125,7 +128,8 @@ public static class Program
 		transport.DoFakeNetworkErrors = true;
 
 		transport.OnClientError = (error, s) => Console.Error.WriteLine($"ERROR {error} {s}");
-		transport.OnClientDataReceived = (bytes, i) => Console.WriteLine($"RECV {bytes.Join()} {i}");
+		transport.OnClientDataSent = (bytes, i) => Console.WriteLine($"SEND {i} {bytes.Join()}");
+		transport.OnClientDataReceived = (bytes, i) => Console.WriteLine($"RECV {i} {bytes.Join()}");
 
 		transport.ClientConnect("76561198150564286");
 
@@ -134,7 +138,7 @@ public static class Program
 			Console.WriteLine("press q to quit, s to send");
 
 			var running = true;
-			transport.OnClientDisconnected = () => running = false; // mirror normally does this
+			// transport.OnClientDisconnected = () => running = false; // mirror normally does this
 			while (running)
 			{
 				transport.ClientEarlyUpdate();
@@ -143,7 +147,8 @@ public static class Program
 					switch (Console.ReadKey(true).KeyChar)
 					{
 						case 'q':
-							running = false;
+							// running = false;
+							transport.ClientDisconnect();
 							break;
 						case 's':
 							transport.ClientSend(new ArraySegment<byte>(new byte[] { 1, 2, 3, 4, 5 }, 1, 5 - 1));