diff --git a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/EncryptionPacketListener.java b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/EncryptionPacketListener.java
index 74cd4fea..c3a323dd 100644
--- a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/EncryptionPacketListener.java
+++ b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/EncryptionPacketListener.java
@@ -51,6 +51,10 @@ public class EncryptionPacketListener extends PacketAdapter {
      */
     @Override
     public void onPacketReceiving(PacketEvent packetEvent) {
+        if (packetEvent.isCancelled()) {
+            return;
+        }
+
         Player sender = packetEvent.getPlayer();
         byte[] sharedSecret = packetEvent.getPacket().getByteArrays().read(0);
         
diff --git a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/StartPacketListener.java b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/StartPacketListener.java
index e05aec1e..b6d6a520 100644
--- a/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/StartPacketListener.java
+++ b/bukkit/src/main/java/com/github/games647/fastlogin/bukkit/listener/protocollib/StartPacketListener.java
@@ -52,6 +52,10 @@ public class StartPacketListener extends PacketAdapter {
      */
     @Override
     public void onPacketReceiving(PacketEvent packetEvent) {
+        if (packetEvent.isCancelled()) {
+            return;
+        }
+
         plugin.setServerStarted();
 
         Player player = packetEvent.getPlayer();
diff --git a/bungee/src/main/java/com/github/games647/fastlogin/bungee/listener/PlayerConnectionListener.java b/bungee/src/main/java/com/github/games647/fastlogin/bungee/listener/PlayerConnectionListener.java
index e83dadd8..dfe5c077 100644
--- a/bungee/src/main/java/com/github/games647/fastlogin/bungee/listener/PlayerConnectionListener.java
+++ b/bungee/src/main/java/com/github/games647/fastlogin/bungee/listener/PlayerConnectionListener.java
@@ -49,6 +49,10 @@ public class PlayerConnectionListener implements Listener {
 
     @EventHandler
     public void onLogin(LoginEvent loginEvent) {
+        if (loginEvent.isCancelled()) {
+            return;
+        }
+
         //use the loginevent instead of the postlogin event in order to send the loginsuccess packet to the client
         //with the offline uuid this makes it possible to set the skin then