diff --git a/src/main/java/com/ghgande/j2mod/modbus/io/BytesOutputStream.java b/src/main/java/com/ghgande/j2mod/modbus/io/BytesOutputStream.java
index 65af0fc..068b9b5 100644
--- a/src/main/java/com/ghgande/j2mod/modbus/io/BytesOutputStream.java
+++ b/src/main/java/com/ghgande/j2mod/modbus/io/BytesOutputStream.java
@@ -70,6 +70,17 @@ public void reset() {
         count = 0;
     }
 
+    /**
+     * Resets this <tt>BytesInputStream</tt> using the given
+     * byte[] as new input buffer.
+     *
+     * @param data a byte array with data to be read.
+     */
+    public void reset(byte[] data) {
+        buf = data;
+        count = 0;
+    }
+
     @Override
     public void writeBoolean(boolean v) throws IOException {
         dataOutputStream.writeBoolean(v);
diff --git a/src/main/java/com/ghgande/j2mod/modbus/io/ModbusRTUTransport.java b/src/main/java/com/ghgande/j2mod/modbus/io/ModbusRTUTransport.java
index 3d51321..a36a3d2 100644
--- a/src/main/java/com/ghgande/j2mod/modbus/io/ModbusRTUTransport.java
+++ b/src/main/java/com/ghgande/j2mod/modbus/io/ModbusRTUTransport.java
@@ -321,7 +321,8 @@ protected ModbusRequest readRequestIn(AbstractModbusListener listener) throws Mo
                         int[] crc = ModbusUtil.calculateCRC(inBuffer, 0, dlength); // does not include CRC
                         if (ModbusUtil.unsignedByteToInt(inBuffer[dlength]) != crc[0] || ModbusUtil.unsignedByteToInt(inBuffer[dlength + 1]) != crc[1]) {
                             if (logger.isDebugEnabled()) {
-                                logger.debug("CRC should be {}, {}", Integer.toHexString(crc[0]), Integer.toHexString(crc[1]));
+                                logger.debug("CRC should be {}, {} inBuffer={}", Integer.toHexString(crc[0]), Integer.toHexString(crc[1]), 
+                                		ModbusUtil.toHex(inBuffer, 0, dlength + 2));
                             }
 
                             // Drain the input in case the frame was misread and more
@@ -380,6 +381,8 @@ protected ModbusRequest readRequestIn(AbstractModbusListener listener) throws Mo
                                 logger.debug("Read message not meant for us: {}", ModbusUtil.toHex(byteInputOutputStream.getBuffer(), 0, byteInputOutputStream.size()));
                             }
                         }
+                        // as the buffer might have been bumped due to more than 256 bytes input, we reset it to the original inBuffer
+                        byteInputOutputStream.reset(inBuffer);
                     }
                 }
             }