diff --git a/Server.toml b/Server.toml
index d290581..14ae320 100644
--- a/Server.toml
+++ b/Server.toml
@@ -1,3 +1,4 @@
 [server]
 address = "0.0.0.0:12345"
 max_clients = 254
+timeout_ms = 10000
diff --git a/kubi-server/src/config.rs b/kubi-server/src/config.rs
index a16dbf2..4593221 100644
--- a/kubi-server/src/config.rs
+++ b/kubi-server/src/config.rs
@@ -6,6 +6,7 @@ use std::{fs, net::SocketAddr};
 pub struct ConfigTableServer {
   pub address: SocketAddr,
   pub max_clients: usize,
+  pub timeout_ms: u64,
 }
 
 #[derive(Unique, Serialize, Deserialize)]
diff --git a/kubi-server/src/server.rs b/kubi-server/src/server.rs
index 589b160..e69d710 100644
--- a/kubi-server/src/server.rs
+++ b/kubi-server/src/server.rs
@@ -1,6 +1,7 @@
 use shipyard::{AllStoragesView, Unique, UniqueView, UniqueViewMut};
 use kubi_udp::server::{Server, ServerConfig};
 use kubi_shared::networking::messages::{ClientToServerMessage, ServerToClientMessage};
+use std::time::Duration;
 use crate::config::ConfigTable;
 
 #[derive(Unique)]
@@ -14,7 +15,11 @@ pub fn bind_server(
   let config = storages.borrow::<UniqueView<ConfigTable>>().unwrap();
   let server: Server<ServerToClientMessage, ClientToServerMessage> = Server::bind(
     config.server.address, 
-    ServerConfig { max_clients: config.server.max_clients }
+    ServerConfig { 
+      max_clients: config.server.max_clients,
+      client_timeout: Duration::from_millis(config.server.timeout_ms),
+      ..Default::default()
+    }
   ).unwrap();
   storages.add_unique(UdpServer(server));
 }
diff --git a/kubi-shared/src/networking/messages.rs b/kubi-shared/src/networking/messages.rs
index 9a84abf..5578781 100644
--- a/kubi-shared/src/networking/messages.rs
+++ b/kubi-shared/src/networking/messages.rs
@@ -5,7 +5,9 @@ type IVec3Arr = [i32; 3];
 type Vec3Arr = [f32; 3];
 type QuatArr = [f32; 3];
 
-#[derive(Encode, Decode)]
+pub const PROTOCOL_ID: u16 = 1;
+
+#[derive(Encode, Decode, Clone)]
 pub enum ClientToServerMessage {
   ClientHello {
     username: String,
@@ -21,7 +23,7 @@ pub enum ClientToServerMessage {
   },
 }
 
-#[derive(Encode, Decode)]
+#[derive(Encode, Decode, Clone)]
 pub enum ServerToClientMessage {
   ServerHello,
   ServerFuckOff {
diff --git a/kubi-udp/src/client.rs b/kubi-udp/src/client.rs
index 50d02de..cb411b1 100644
--- a/kubi-udp/src/client.rs
+++ b/kubi-udp/src/client.rs
@@ -6,11 +6,10 @@ use std::{
   collections::{VecDeque, vec_deque::Drain as DrainDeque}, 
   io::ErrorKind,
 };
-use bincode::{Encode, Decode};
 use crate::{
   BINCODE_CONFIG, 
-  packet::{ClientPacket, IdClientPacket, IdServerPacket, ServerPacket},
-  common::ClientId
+  packet::{ClientPacket, IdClientPacket, IdServerPacket, ServerPacket, Message},
+  common::{ClientId, PROTOCOL_ID, DEFAULT_USER_PROTOCOL_ID}
 };
 
 #[derive(Default, Clone, Debug)]
@@ -22,6 +21,7 @@ pub enum DisconnectReason {
   KickedByServer(Option<String>),
   Timeout,
   ConnectionReset,
+  InvalidProtocolId,
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
@@ -33,25 +33,27 @@ pub enum ClientStatus {
 
 #[derive(Clone, Copy, Debug)]
 pub struct ClientConfig {
+  pub protocol_id: u16,
   pub timeout: Duration,
   pub heartbeat_interval: Duration,
 }
 impl Default for ClientConfig {
   fn default() -> Self {
     Self {
+      protocol_id: DEFAULT_USER_PROTOCOL_ID,
       timeout: Duration::from_secs(5),
       heartbeat_interval: Duration::from_secs(3),
     }
   }
 }
 
-pub enum ClientEvent<T> where T: Encode + Decode {
+pub enum ClientEvent<T> where T: Message {
   Connected(ClientId),
   Disconnected(DisconnectReason),
   MessageReceived(T)
 }
 
-pub struct Client<S, R> where S: Encode + Decode, R: Encode + Decode {
+pub struct Client<S, R> where S: Message, R: Message {
   config: ClientConfig,
   addr: SocketAddr,
   socket: UdpSocket,
@@ -63,9 +65,15 @@ pub struct Client<S, R> where S: Encode + Decode, R: Encode + Decode {
   event_queue: VecDeque<ClientEvent<R>>,
   _s: PhantomData<S>,
 }
-impl<S, R> Client<S, R> where S: Encode + Decode, R: Encode + Decode {
+impl<S, R> Client<S, R> where S: Message, R: Message {
   #[inline]
   pub fn new(addr: SocketAddr, config: ClientConfig) -> Result<Self> {
+    if config.protocol_id == 0 {
+      log::warn!("Warning: using 0 as protocol_id is not recommended");
+    }
+    if config.protocol_id == DEFAULT_USER_PROTOCOL_ID {
+      log::warn!("Warning: using default protocol_id is not recommended");
+    }
     let bind_addr: SocketAddr = "0.0.0.0:0".parse().unwrap();
     let socket = UdpSocket::bind(bind_addr)?;
     socket.set_nonblocking(true)?;
@@ -107,7 +115,7 @@ impl<S, R> Client<S, R> where S: Encode + Decode, R: Encode + Decode {
 
   #[inline]
   pub fn connect(&mut self) -> Result<()> {
-    log::info!("client connect called");
+    log::info!("Client connecting..");
     if self.status != ClientStatus::Disconnected {
       bail!("Not Disconnected");
     }
@@ -115,7 +123,10 @@ impl<S, R> Client<S, R> where S: Encode + Decode, R: Encode + Decode {
     self.last_heartbeat = Instant::now();
     self.reset_timeout();
     self.socket.connect(self.addr)?;
-    self.send_raw_packet(ClientPacket::Connect)?;
+    self.send_raw_packet(ClientPacket::Connect{
+      user_protocol: self.config.protocol_id,
+      inner_protocol: PROTOCOL_ID,
+    })?;
     Ok(())
   }
 
@@ -216,6 +227,15 @@ impl<S, R> Client<S, R> where S: Encode + Decode, R: Encode + Decode {
             },
             ServerPacket::Data(message) => {
               self.event_queue.push_back(ClientEvent::MessageReceived(message));
+              self.timeout = Instant::now();
+            },
+            ServerPacket::Heartbeat => {
+              self.timeout = Instant::now();
+            },
+            ServerPacket::ProtoDisconnect => {
+              let reason = DisconnectReason::InvalidProtocolId;
+              self.disconnect_inner(reason, true)?; //this should never fail but we're handling the error anyway 
+              return Ok(());
             }
           }
         },
diff --git a/kubi-udp/src/common.rs b/kubi-udp/src/common.rs
index 76e92b2..84b2822 100644
--- a/kubi-udp/src/common.rs
+++ b/kubi-udp/src/common.rs
@@ -3,3 +3,6 @@ use std::num::NonZeroU8;
 pub type ClientId = NonZeroU8;
 pub type ClientIdRepr = u8;
 pub const MAX_CLIENTS: usize = u8::MAX as _;
+
+pub const PROTOCOL_ID: u16 = 1;
+pub const DEFAULT_USER_PROTOCOL_ID: u16 = 0xcafe;
diff --git a/kubi-udp/src/packet.rs b/kubi-udp/src/packet.rs
index 8f13403..b5eff11 100644
--- a/kubi-udp/src/packet.rs
+++ b/kubi-udp/src/packet.rs
@@ -1,25 +1,33 @@
 use bincode::{Encode, Decode};
 use crate::common::ClientId;
 
+pub trait Message: Encode + Decode + Clone {}
+impl<T: Encode + Decode + Clone> Message for T {}
+
 #[repr(u8)]
 #[derive(Encode, Decode)]
-pub enum ClientPacket<T> where T: Encode + Decode {
+pub enum ClientPacket<T> where T: Message {
+  Connect {
+    inner_protocol: u16,
+    user_protocol: u16,
+  }, //should always stay 0!
   Data(T),
-  Connect,
   Disconnect,
   Heartbeat,
 }
 
 #[derive(Encode, Decode)]
-pub struct IdClientPacket<T: Encode + Decode>(pub Option<ClientId>, pub ClientPacket<T>);
+pub struct IdClientPacket<T: Message>(pub Option<ClientId>, pub ClientPacket<T>);
 
 #[repr(u8)]
 #[derive(Encode, Decode)]
-pub enum ServerPacket<T> where T: Encode + Decode {
+pub enum ServerPacket<T> where T: Message {
+  ProtoDisconnect = 0,
   Data(T),
-  Connected(ClientId),
   Disconnected(String),
+  Connected(ClientId),
+  Heartbeat,
 }
 
 #[derive(Encode, Decode)]
-pub struct IdServerPacket<T: Encode + Decode>(pub Option<ClientId>, pub ServerPacket<T>);
+pub struct IdServerPacket<T: Message>(pub Option<ClientId>, pub ServerPacket<T>);
diff --git a/kubi-udp/src/server.rs b/kubi-udp/src/server.rs
index b15a185..18fa508 100644
--- a/kubi-udp/src/server.rs
+++ b/kubi-udp/src/server.rs
@@ -1,18 +1,17 @@
 use std::{
   net::{UdpSocket, SocketAddr},
-  time::Instant,
+  time::{Instant, Duration},
   marker::PhantomData,
   collections::{VecDeque, vec_deque::Drain as DrainDeque},
   io::ErrorKind
 };
 use anyhow::{Result, bail};
-use bincode::{Encode, Decode};
 use hashbrown::HashMap;
 use nohash_hasher::BuildNoHashHasher;
 use crate::{
   BINCODE_CONFIG,
-  common::{ClientId, ClientIdRepr, MAX_CLIENTS},
-  packet::{IdClientPacket, ClientPacket, ServerPacket, IdServerPacket}
+  common::{ClientId, ClientIdRepr, MAX_CLIENTS, PROTOCOL_ID, DEFAULT_USER_PROTOCOL_ID},
+  packet::{IdClientPacket, ClientPacket, ServerPacket, IdServerPacket, Message}
 };
 
 //i was feeling a bit sick while writing most of this please excuse me for my terrible code :3
@@ -26,16 +25,20 @@ pub struct ConnectedClient {
 #[derive(Clone, Copy, Debug)]
 pub struct ServerConfig {
   pub max_clients: usize,
+  pub client_timeout: Duration,
+  pub protocol_id: u16,
 }
 impl Default for ServerConfig {
   fn default() -> Self {
     Self {
       max_clients: MAX_CLIENTS,
+      client_timeout: Duration::from_secs(5),
+      protocol_id: DEFAULT_USER_PROTOCOL_ID,
     }
   }
 }
 
-pub enum ServerEvent<T> where T: Encode + Decode {
+pub enum ServerEvent<T> where T: Message {
   Connected(ClientId),
   Disconnected(ClientId),
   MessageReceived {
@@ -44,16 +47,22 @@ pub enum ServerEvent<T> where T: Encode + Decode {
   }
 }
 
-pub struct Server<S, R> where S: Encode + Decode, R: Encode + Decode {
+pub struct Server<S, R> where S: Message, R: Message {
   socket: UdpSocket,
   clients: HashMap<ClientId, ConnectedClient, BuildNoHashHasher<ClientIdRepr>>,
   config: ServerConfig,
   event_queue: VecDeque<ServerEvent<R>>,
   _s: PhantomData<S>,
 }
-impl<S, R> Server<S, R> where S: Encode + Decode, R: Encode + Decode {
+impl<S, R> Server<S, R> where S: Message, R: Message {
   pub fn bind(addr: SocketAddr, config: ServerConfig) -> anyhow::Result<Self> {
-    assert!(config.max_clients <= MAX_CLIENTS);
+    assert!(config.max_clients <= MAX_CLIENTS, "max_clients value exceeds the maximum allowed amount of clients");
+    if config.protocol_id == 0 {
+      log::warn!("Warning: using 0 as protocol_id is not recommended");
+    }
+    if config.protocol_id == DEFAULT_USER_PROTOCOL_ID {
+      log::warn!("Warning: using default protocol_id is not recommended");
+    }
     let socket = UdpSocket::bind(addr)?;
     socket.set_nonblocking(true)?;
     Ok(Self { 
@@ -127,6 +136,12 @@ impl<S, R> Server<S, R> where S: Encode + Decode, R: Encode + Decode {
     self.send_packet(IdServerPacket(Some(id), ServerPacket::Data(message)))?;
     Ok(())
   }
+  pub fn multicast_message(&mut self, _clients: impl IntoIterator<Item = ClientId>, _message: S) {
+    todo!()
+  }
+  pub fn broadcast_message(&mut self, _message: S) -> anyhow::Result<()> {
+    todo!()
+  }
   
   pub fn update(&mut self) -> Result<()> {
     //TODO client timeout
@@ -141,7 +156,10 @@ impl<S, R> Server<S, R> where S: Encode + Decode, R: Encode + Decode {
               Some(id) => {
                 if !self.clients.contains_key(&id) {
                   bail!("Client with id {id} doesn't exist");
-                };
+                }
+                if self.clients.get(&id).unwrap().addr != addr {
+                  bail!("Client addr doesn't match");
+                }
                 match packet {
                   ClientPacket::Data(data) => {
                     self.event_queue.push_back(ServerEvent::MessageReceived {
@@ -155,21 +173,30 @@ impl<S, R> Server<S, R> where S: Encode + Decode, R: Encode + Decode {
                     self.disconnect_client_inner(id, "Disconnected".into())?;
                   },
                   ClientPacket::Heartbeat => {
-                    self.clients.get_mut(&id).unwrap().timeout = Instant::now()
+                    self.clients.get_mut(&id).unwrap().timeout = Instant::now();
+                    self.send_packet(IdServerPacket(Some(id), ServerPacket::Heartbeat))?;
                   },
-                  ClientPacket::Connect => bail!("Client already connected"),
+                  ClientPacket::Connect{..} => bail!("Client already connected"),
                 }
               },
               None => {
                 match packet {
-                  ClientPacket::Connect => {
+                  ClientPacket::Connect { user_protocol, inner_protocol } => {
+                    if (inner_protocol != PROTOCOL_ID) || (user_protocol != self.config.protocol_id ) {
+                      log::error!("Client conenction refused: Invalid protocol id");
+                      self.send_to_addr(addr, 
+                        IdServerPacket(None, ServerPacket::ProtoDisconnect)
+                      )?;
+                      continue;
+                    }
+
                     match self.add_client(addr) {
                       Ok(id) => {
                         log::info!("Client with id {id} connected");
                         self.event_queue.push_back(ServerEvent::Connected(id));
                         self.send_to_addr(addr, 
-                          IdServerPacket(None, ServerPacket::Connected(id)
-                        ))?;
+                          IdServerPacket(None, ServerPacket::Connected(id))
+                        )?;
                       },
                       Err(error) => {
                         let reason = error.to_string();
diff --git a/kubi/src/gui.rs b/kubi/src/gui.rs
index 73ac0d9..e45af3a 100644
--- a/kubi/src/gui.rs
+++ b/kubi/src/gui.rs
@@ -1,11 +1,11 @@
-use shipyard::{Component, Unique, Workload, IntoWorkload, AllStoragesView, AllStoragesViewMut, View, UniqueView, NonSendSync, UniqueViewMut, IntoIter};
-use glam::{Vec4, Mat3, vec2, Mat4};
-use crate::{color::color_hex, transform::Transform2d, events::WindowResizedEvent, rendering::Renderer};
+use shipyard::{Component, Unique, Workload, IntoWorkload, AllStoragesView, View, UniqueViewMut, IntoIter};
+use glam::{Vec4, Mat4};
+use crate::{color::color_hex, events::WindowResizedEvent};
 
 pub mod text_widget;
 pub mod progressbar;
 
-use progressbar::{render_progressbars, ProgressbarComponent};
+use progressbar::render_progressbars;
 
 //TODO compute gui scale on window resize
 #[derive(Unique, Clone, Copy, Debug, Default)]
diff --git a/kubi/src/init.rs b/kubi/src/init.rs
index 24536c6..23500e9 100644
--- a/kubi/src/init.rs
+++ b/kubi/src/init.rs
@@ -1,5 +1,5 @@
 use shipyard::{AllStoragesViewMut, UniqueViewMut};
-use std::{env, net::SocketAddr, borrow::BorrowMut};
+use std::{env, net::SocketAddr};
 use crate::{
   networking::{GameType, ServerAddress},
   state::{GameState, NextState}
diff --git a/kubi/src/loading_screen.rs b/kubi/src/loading_screen.rs
index 02242aa..75873ff 100644
--- a/kubi/src/loading_screen.rs
+++ b/kubi/src/loading_screen.rs
@@ -47,7 +47,7 @@ fn update_progress_bar_progress (
 ) {
   let bar = (&mut bar).get(eid.0).unwrap();
   let loaded = world.chunks.iter().fold(0, |acc, (&_, chunk)| {
-    acc + chunk.desired_state.matches(chunk.current_state) as usize
+    acc + chunk.desired_state.matches_current(chunk.current_state) as usize
   });
   let total = world.chunks.len();
   let progress = loaded as f32 / total as f32;
@@ -62,7 +62,7 @@ fn switch_to_ingame_if_loaded(
     return
   }
   if world.chunks.iter().all(|(_, chunk)| {
-    chunk.desired_state.matches(chunk.current_state)
+    chunk.desired_state.matches_current(chunk.current_state)
   }) {
     log::info!("Finished loading chunks");
     state.0 = Some(GameState::InGame);
diff --git a/kubi/src/world/chunk.rs b/kubi/src/world/chunk.rs
index cd8f77e..f22801f 100644
--- a/kubi/src/world/chunk.rs
+++ b/kubi/src/world/chunk.rs
@@ -30,11 +30,6 @@ pub enum CurrentChunkState {
   RecalculatingMesh, 
   Unloading,      
 }
-impl CurrentChunkState {
-  pub fn matches(self, desired: DesiredChunkState) -> bool {
-    desired.matches(self)
-  }
-}
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq, Default)]
 pub enum DesiredChunkState {
@@ -45,7 +40,7 @@ pub enum DesiredChunkState {
   ToUnload,
 }
 impl DesiredChunkState {
-  pub fn matches(self, current: CurrentChunkState) -> bool {
+  pub fn matches_current(self, current: CurrentChunkState) -> bool {
     (matches!(self, DesiredChunkState::Nothing)  && matches!(current, CurrentChunkState::Nothing)) ||
     (matches!(self, DesiredChunkState::Loaded)   && matches!(current, CurrentChunkState::Loaded)) ||
     (matches!(self, DesiredChunkState::Rendered) && matches!(current, CurrentChunkState::Rendered))