Example adjusted to make it work again.

Open TcpConnection (none-async) won't cause a deadlock anymore.
Packets (without RequestPacket as inheritance) are receivable.
Version increment.

Author: Toemsel

Examples/TestServerClientPackets/ExamplePacketsOne/AddStudentToDatabaseResponse.cs

@@ -7,13 +7,13 @@ namespace TestServerClientPackets.ExamplePacketsOne
     [PacketRequest(typeof(AddStudentToDatabaseRequest))]
     public class AddStudentToDatabaseResponse : ResponsePacket
     {
-        public AddStudentToDatabaseResponse(DatabaseResult? result,
+        public AddStudentToDatabaseResponse(DatabaseResult result,
             AddStudentToDatabaseRequest addStudentRequest)
             : base(addStudentRequest)
         {
             Result = result;
         }
 
-        public DatabaseResult? Result { get; set; }
+        public DatabaseResult Result { get; set; }
     }
 }

Network/.vs/Network/v15/.suo

@@ -751,7 +751,7 @@ private void HandleDefaultPackets(Packet packet)
             {
                 if (packet.GetType().IsSubclassOf(typeof(ResponsePacket)) && objectMap[packet.ID] != null)
                     objectMap[packet.ID].DynamicInvoke(new object[] { packet, this });
-                else if (packet.GetType().IsSubclassOf(typeof(RequestPacket)) && objectMap[packet.GetType()] != null)
+                else if (objectMap[packet.GetType()] != null)
                     objectMap[packet.GetType()].DynamicInvoke(new object[] { packet, this });
                 else PacketWithoutHandlerReceived(packet);
             }

Network/Connection.cs

@@ -208,7 +208,7 @@ public static async Task<Tuple<TcpConnection, ConnectionResult>> CreateTcpConnec
             TcpClient tcpClient = new TcpClient();
             Task timeoutTask = Task.Delay(CONNECTION_TIMEOUT);
             Task connectTask = Task.Factory.StartNew(() => tcpClient.Connect(ipAddress, port));
-            if (await Task.WhenAny(timeoutTask, connectTask) != timeoutTask && tcpClient.Connected)
+            if (await Task.WhenAny(timeoutTask, connectTask).ConfigureAwait(false) != timeoutTask && tcpClient.Connected)
                 return new Tuple<TcpConnection, ConnectionResult>(new TcpConnection(tcpClient), ConnectionResult.Connected);
 
             return new Tuple<TcpConnection, ConnectionResult>(null, ConnectionResult.Timeout);

Network/ConnectionFactory.cs

@@ -6,7 +6,7 @@
      <RestoreProjectStyle>PackageReference</RestoreProjectStyle>
      <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
      <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
-     <Version>6.1.0.6</Version>
+     <Version>6.1.0.7</Version>
      <Authors>Thomas Christof</Authors>
      <Company>Indie-Dev</Company>
      <Description>Network library supporting: TCP, UDP, Bluetooth, RSA, events and objects. Fast and simple, with only 48bit overhead per packet. Send and receive packets with async operations.
@@ -29,8 +29,8 @@ Release preview dependencies removed.
 None integer inheritance enums are serializable.
 ConnectionFactory (async) Bugfixes.</PackageReleaseNotes>
      <NeutralLanguage>en-US</NeutralLanguage>
-     <AssemblyVersion>6.1.0.6</AssemblyVersion>
-     <FileVersion>6.1.0.6</FileVersion>
+     <AssemblyVersion>6.1.0.7</AssemblyVersion>
+     <FileVersion>6.1.0.7</FileVersion>
   </PropertyGroup>
   <ItemGroup>
     <Compile Remove="packages\**" />