diff --git a/app/src/async_stream.py b/app/src/async_stream.py
index d216550..2e9a4d9 100644
--- a/app/src/async_stream.py
+++ b/app/src/async_stream.py
@@ -21,7 +21,7 @@ class AsyncStream(Message):
     Our puplic methods
     '''
     def set_serial_no(self, serial_no : str):
-        logger.info(f'SerialNo: {serial_no}')
+        logger.debug(f'SerialNo: {serial_no}')
        
         if self.unique_id != serial_no: 
        
@@ -40,7 +40,7 @@ class AsyncStream(Message):
                 if not inverters['allow_all']:
                     self.unique_id = None
             
-                    logger.error('ignore message from unknow inverter!')
+                    logger.warning('ignore message from unknow inverter! (SerialNo: {serial_no})')
                     return
 
             self.unique_id = serial_no
@@ -67,7 +67,7 @@ class AsyncStream(Message):
             except (ConnectionResetError,
                     ConnectionAbortedError,
                     RuntimeError) as error:
-                logger.error(f'In loop for {self.addr}: {error}')
+                logger.warning(f'In loop for {self.addr}: {error}')
                 self.close()
                 return
             except Exception:
diff --git a/app/src/messages.py b/app/src/messages.py
index e9a5838..aaa668c 100644
--- a/app/src/messages.py
+++ b/app/src/messages.py
@@ -18,7 +18,8 @@ def hex_dump_memory(level, info, data, num):
     lines = []
     lines.append(info)
     tracer = logging.getLogger('tracer')
-    
+    if not tracer.isEnabledFor(level): return
+
 
     #data = list((num * ctypes.c_byte).from_address(ptr))
 
@@ -294,7 +295,7 @@ class Message(metaclass=IterRegistry):
 
 
     def msg_unknown(self):
-        logger.error (f"Unknow Msg: ID:{self.msg_id}")       
+        logger.warning (f"Unknow Msg: ID:{self.msg_id}")       
         self.forward(self._recv_buffer, self.header_len+self.data_len)