diff --git a/fabric/src/alt-auth.mixins.json b/fabric/src/alt-auth.mixins.json
index 2b408a9..8da0b3d 100644
--- a/fabric/src/alt-auth.mixins.json
+++ b/fabric/src/alt-auth.mixins.json
@@ -9,7 +9,8 @@
   ],
   "server": [
     "ServerIdMixin",
-    "MinecraftServerMixin"
+    "MinecraftServerMixin",
+    "ServerLoginNetworkHandlerNetworkMixin"
   ],
   "injectors": {
     "defaultRequire": 1
diff --git a/fabric/src/de/chaoscaot/altauth/fabric/mixin/LoginRequestMixin.java b/fabric/src/de/chaoscaot/altauth/fabric/mixin/LoginRequestMixin.java
index e139870..09b326b 100644
--- a/fabric/src/de/chaoscaot/altauth/fabric/mixin/LoginRequestMixin.java
+++ b/fabric/src/de/chaoscaot/altauth/fabric/mixin/LoginRequestMixin.java
@@ -48,10 +48,10 @@ public class LoginRequestMixin {
                 } else {
                     if(MinecraftClient.getInstance().currentScreen instanceof ConnectScreen cs) {
                         ci.cancel();
-                        /*cs.connectingCancelled = true;
+                        cs.connectingCancelled = true;
                         if( cs.connection != null) {
                             cs.connection.disconnect(Text.translatable("connect.aborted"));
-                        }*/
+                        }
 
                         MinecraftClient.getInstance().execute(() -> client.setScreen(new TrustServerScreen(server, cs.parent)));
                     }
diff --git a/fabric/src/de/chaoscaot/altauth/fabric/mixin/MinecraftServerMixin.java b/fabric/src/de/chaoscaot/altauth/fabric/mixin/MinecraftServerMixin.java
index b36df24..b3a4d89 100644
--- a/fabric/src/de/chaoscaot/altauth/fabric/mixin/MinecraftServerMixin.java
+++ b/fabric/src/de/chaoscaot/altauth/fabric/mixin/MinecraftServerMixin.java
@@ -2,39 +2,41 @@
 
 package de.chaoscaot.altauth.fabric.mixin;
 
+import com.mojang.datafixers.DataFixer;
 import de.chaoscaot.altauth.fabric.AltAuth;
 import de.chaoscaot.altauth.fabric.config.ServerConfig;
 import net.fabricmc.api.EnvType;
 import net.fabricmc.api.Environment;
-import net.minecraft.client.MinecraftClient;
+import net.minecraft.resource.ResourcePackManager;
 import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.SaveLoader;
+import net.minecraft.server.WorldGenerationProgressListenerFactory;
 import net.minecraft.util.ApiServices;
+import net.minecraft.world.level.storage.LevelStorage;
 import org.joor.Reflect;
-import org.objectweb.asm.Opcodes;
 import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Shadow;
 import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 import java.net.MalformedURLException;
+import java.net.Proxy;
 import java.net.URL;
 
 @Environment(EnvType.SERVER)
 @Mixin(MinecraftServer.class)
 public class MinecraftServerMixin {
 
-    @Shadow
-    protected ApiServices apiServices;
-
-    @Redirect(method = "<init>", at = @At(value = "FIELD", target = "Lnet/minecraft/server/MinecraftServer;apiServices:Lnet/minecraft/util/ApiServices;", opcode = Opcodes.PUTFIELD))
-    private void apiServiceMixin(MinecraftServer instance, ApiServices value) {
-        apiServices = value;
-
+    @Inject(method = "<init>", at = @At(value = "TAIL"))
+    private void apiServiceMixin(Thread serverThread, LevelStorage.Session session, ResourcePackManager dataPackManager, SaveLoader saveLoader, Proxy proxy, DataFixer dataFixer, ApiServices apiServices, WorldGenerationProgressListenerFactory worldGenerationProgressListenerFactory, CallbackInfo ci) {
         try {
-            URL url = new URL("https://" + ServerConfig.INSTANCE.serverUrl + "/session/minecraft/join");
-            Reflect.on(MinecraftClient.getInstance().getSessionService()).set("joinUrl", url);
+            URL url = new URL("https://" + ServerConfig.INSTANCE.serverUrl + "/session/minecraft/hasJoined");
+            Reflect.on(apiServices.sessionService()).set("checkUrl", url);
+            URL joinUrl = new URL("https://" + ServerConfig.INSTANCE.serverUrl + "/session/minecraft/join");
+            Reflect.on(apiServices.sessionService()).set("joinUrl", joinUrl);
         } catch (MalformedURLException e) {
             AltAuth.LOGGER.error("Malformed URL: {}", e.getMessage());
         }
+        ServerConfig.INSTANCE.save();
     }
 }
diff --git a/fabric/src/de/chaoscaot/altauth/fabric/mixin/ServerLoginNetworkHandlerNetworkMixin.java b/fabric/src/de/chaoscaot/altauth/fabric/mixin/ServerLoginNetworkHandlerNetworkMixin.java
new file mode 100644
index 0000000..2f3687f
--- /dev/null
+++ b/fabric/src/de/chaoscaot/altauth/fabric/mixin/ServerLoginNetworkHandlerNetworkMixin.java
@@ -0,0 +1,16 @@
+package de.chaoscaot.altauth.fabric.mixin;
+
+import de.chaoscaot.altauth.fabric.config.ServerConfig;
+import net.minecraft.server.network.ServerLoginNetworkHandler;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.ModifyArg;
+
+@Mixin(ServerLoginNetworkHandler.class)
+public class ServerLoginNetworkHandlerNetworkMixin {
+
+    @ModifyArg(method = "onKey", at = @At(value = "INVOKE", target = "Lnet/minecraft/network/encryption/NetworkEncryptionUtils;computeServerId(Ljava/lang/String;Ljava/security/PublicKey;Ljavax/crypto/SecretKey;)[B"), index =  0)
+    private String onKey(String serverId) {
+        return ServerConfig.INSTANCE.serverUrl;
+    }
+}