Best posts made by Frédéric Grandjean

Perfect, thank you.
That solved all issues! Now working super fine.

Hi Carlierd,
Thanks for your questions and answers to yourself

Actually that helped me as I was mixing both types of RFM69.

Hi Jonathan,
Before I show my code, please check:

• Connect W5100 and radio like this

Arduino - Radio - Ethernet
13      - SCK   - SCK
12      - MISO  - MISO/SO
11      - MOSI  - MOSI/SI
10      - NSS (CS)
7       -       - SS/CS
2       - DIO0  -

Be sure to power the W5100 with 5V and the radio with 3v3!

Then, you need to modify the w5100.h file to disable radio interruption during SPI use:
Find

#else
  inline static void initSS()    { DDRB  |=  _BV(2); };
  inline static void setSS()     { PORTB &= ~_BV(2); };
  inline static void resetSS()   { PORTB |=  _BV(2); };
#endif

and replace with

#elif defined(W5100SPIPATCH)
  inline static void initSS()    { DDRD  |=  _BV(7); };
  inline static void setSS()     { cli(); PORTD &= ~_BV(7); };
  inline static void resetSS()   { PORTD |=  _BV(7); sei(); };
#endif

Then, downgrade the board manager "Arduino AVR boards" to version 1.6.11 and rebuild.

Finally, here is my working code:

/**
 * The MySensors Arduino library handles the wireless radio link and protocol
 * between your home built sensors/actuators and HA controller of choice.
 * The sensors forms a self healing radio network with optional repeaters. Each
 * repeater and gateway builds a routing tables in EEPROM which keeps track of the
 * network topology allowing messages to be routed to nodes.
 *
 * Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
 * Copyright (C) 2013-2015 Sensnology AB
 * Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
 *
 * Documentation: http://www.mysensors.org
 * Support Forum: http://forum.mysensors.org
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 *******************************
 *
 * REVISION HISTORY
 * Version 1.0 - Henrik EKblad
 * Contribution by a-lurker and Anticimex,
 * Contribution by Norbert Truchsess <norbert.truchsess@t-online.de>
 * Contribution by Tomas Hozza <thozza@gmail.com>
 *
 *
 * DESCRIPTION
 * The EthernetGateway sends data received from sensors to the ethernet link.
 * The gateway also accepts input on ethernet interface, which is then sent out to the radio network.
 *
 * The GW code is designed for Arduino 328p / 16MHz.  ATmega168 does not have enough memory to run this program.
 *
 * LED purposes:
 * - To use the feature, uncomment MY_DEFAULT_xxx_LED_PIN in the sketch below
 * - RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved
 * - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
 * - ERR (red) - fast blink on error during transmission error or recieve crc error
 *
 * See http://www.mysensors.org/build/ethernet_gateway for wiring instructions.
 *
 */

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable and select radio type attached
#define MY_RADIO_RFM69
#define MY_RFM69_FREQUENCY RF69_433MHZ

// La définition des PIN ci dessous n'est pas nécessaire, car c'est celle de base
//#define MY_RF69_IRQ_PIN 2
//#define MY_RF69_SPI_CS 10

// Enable gateway ethernet module type
#define MY_GATEWAY_W5100

#define MY_IP_ADDRESS 192,168,0,22
#define MY_IP_SUBNET_ADDRESS 255,255,255,0
// The port to keep open on node server mode / or port to contact in client mode
#define MY_PORT 5003

// The MAC address can be anything you want but should be unique on your network.
// Newer boards have a MAC address printed on the underside of the PCB, which you can (optionally) use.
// Note that most of the Ardunio examples use  "DEAD BEEF FEED" for the MAC address.
#define MY_MAC_ADDRESS 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED

// Enable inclusion mode
#define MY_INCLUSION_MODE_FEATURE
// Enable Inclusion mode button on gateway
//#define MY_INCLUSION_BUTTON_FEATURE
// Set inclusion mode duration (in seconds)
#define MY_INCLUSION_MODE_DURATION 60
// Digital pin used for inclusion mode button
//#define MY_INCLUSION_MODE_BUTTON_PIN  3


// Flash leds on rx/tx/err
#define MY_LEDS_BLINKING_FEATURE
// Set blinking period
#define MY_DEFAULT_LED_BLINK_PERIOD 300
#define MY_DEFAULT_ERR_LED_PIN 4  // Error led pin
#define MY_DEFAULT_RX_LED_PIN  5  // Receive led pin
#define MY_DEFAULT_TX_LED_PIN  6  // Transmit led pin


#if defined(MY_USE_UDP)
  #include <EthernetUdp.h>
#endif
#include <Ethernet.h>
#include <MySensors.h>


void setup() {
}

void presentation() {
}

void loop() {
 }
}

Hope it helped
Fred

Yes of course I used a level converter. Ordered the one proposed on the radio page. Works well!