diff --git a/src/core/core.py b/src/core/core.py
index ba12b16..9bd82c1 100644
--- a/src/core/core.py
+++ b/src/core/core.py
@@ -67,9 +67,9 @@ class Client:
         await self.writer.drain()
 
     async def recv(self):
-        if not self.is_disconnected():
-            self.log.debug(f"Client with {self.nick}({self.cid}) disconnected")
-            return b""
+        # if not self.is_disconnected():
+        #     self.log.debug(f"Client with {self.nick}({self.cid}) disconnected")
+        #     return b""
         header = await self.reader.read(4)  # header: 4 bytes
 
         int_header = 0
diff --git a/src/core/tcp_server.py b/src/core/tcp_server.py
index 7e44d01..88cf6bb 100644
--- a/src/core/tcp_server.py
+++ b/src/core/tcp_server.py
@@ -27,10 +27,10 @@ class TCPServer:
         self.log.debug(f"recv1 data: {data}")
         if len(data) > 50:
             await client.kick("Too long data")
-            return
+            return False, None
         if "VC2.0" not in data.decode("utf-8"):
             await client.kick("Outdated Version.")
-            return
+            return False, None
         else:
             await client.tcp_send(b"A")  # Accepted client version
 
@@ -38,7 +38,7 @@ class TCPServer:
         self.log.debug(f"recv2 data: {data}")
         if len(data) > 50:
             await client.kick("Invalid Key (too long)!")
-            return
+            return False, None
         client.key = data.decode("utf-8")
         async with aiohttp.ClientSession() as session:
             url = 'https://auth.beammp.com/pkToUser'