OMG, thats it.
Downgrade to 1.6.11 solved problem.
Thanks for your time. Y'r great!

OMG, thats it.
Downgrade to 1.6.11 solved problem.
Thanks for your time. Y'r great!

This node is controled by Domoticz. I saw this hardware in controler without presentation name and childrens. When I turnoff this hardware in Domoticz, node doesen' reset. Log in Domo with hardware up:
2017-08-19 23:38:37.109 TCP: Reconnecting...
2017-08-19 23:38:38.109 MySensors: connected to: 192.168.0.172:5003
2017-08-19 23:38:46.940 (ethGet1) Humidity (SOL 2 Hum)
2017-08-19 23:38:47.037 (ethGet1) General/Voltage (SOL 2 Vcc )
2017-08-19 23:38:47.110 MySensors: Connection reset!
2017-08-19 23:38:47.110 TCP: Reconnecting in 30 seconds...
2017-08-19 23:38:54.939 (ethGet1) Temp (STA Temp)

IMHO connection reset concerning presentation problem.
But still I don't understand why node doesn't present name and relay childs in Domo.
Version of motherboard 1.6.19. powered by ac adapter.
At the end of before() serial printed text to debuger - befor() is ok.
I commented all lines. Save only presentation sketch name.
Setup and loop are empty.
Still the same. I'm going creazy...
All of source:

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable gateway ethernet module type
#define MY_GATEWAY_W5100

// W5100 Ethernet module SPI enable (optional if using a shield/module that manages SPI_EN signal)
//#define MY_W5100_SPI_EN 4

// Renewal period if using DHCP
//#define MY_IP_RENEWAL_INTERVAL 60000
// The port to keep open on node server mode / or port to contact in client mode
#define MY_PORT 5003
#define MY_MAC_ADDRESS 0xDE, 0xAD, 0xBE, 0xEE, 0xEE, 0xED // zarezerwowane na 192.168.0.172

// 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

// Set blinking period
//#define MY_DEFAULT_LED_BLINK_PERIOD 300


#include <Ethernet.h>
#include <MySensors.h>
#include <SPI.h>



#define RELAY_1  22 
#define NUMBER_OF_RELAYS 8 // Total number of attached relays
#define RELAY_ON 1  // GPIO value to write to turn on attached relay
#define RELAY_OFF 0// GPIO value to write to turn off attached relay
/*
void before()
{
  for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
    // Then set relay pins in output mode
    pinMode(pin, OUTPUT);
    digitalWrite(pin, RELAY_OFF);
    // Set relay to last known state (using eeprom storage)
    //digitalWrite(pin, loadState(sensor)?RELAY_ON:RELAY_OFF);
  }
}
*/
void presentation()
{
  // Send the sketch version information to the gateway and Controller
  sendSketchInfo("Mega_eth", "1.0");

  for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
    // Register all sensors to gw (they will be created as child devices)
    present(sensor, S_BINARY);
  }
}

void setup()
{
}

void loop()
{
}```

Sure
Part of relay code, same I use now with NRF:

#define RELAY_1  22 
#define NUMBER_OF_RELAYS 8 // Total number of attached relays
#define RELAY_ON 1  // GPIO value to write to turn on attached relay
#define RELAY_OFF 0// GPIO value to write to turn off attached relay

void before()
{
  for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
    // Then set relay pins in output mode
    pinMode(pin, OUTPUT);
    digitalWrite(pin, RELAY_OFF);
    // Set relay to last known state (using eeprom storage)
    //digitalWrite(pin, loadState(sensor)?RELAY_ON:RELAY_OFF);
  }
}

void presentation()
{
  // Send the sketch version information to the gateway and Controller
  sendSketchInfo("Mega_eth", "1.0");

  for (int sensor=1, pin=RELAY_1; sensor<=NUMBER_OF_RELAYS; sensor++, pin++) {
    // Register all sensors to gw (they will be created as child devices)
    present(sensor, S_BINARY);
  }
}```

I try to prepare GW sketch for node with relays.
I'v got problems with NRF (a lot of transmission problems) but I can use LAN for communications.
All log from node:
0;255;3;0;9;MCO:BGN:INIT GW,CP=R-NGA--,VER=2.1.1
0;255;3;0;9;MCO:BGN:BFR
IP: 192.168.0.172
0;255;3;0;9;MCO:BGN:STP
0;255;3;0;9;MCO:REG:NOT NEEDED
0;255;3;0;9;MCO:BGN:INIT OK,TSP=NA
0;255;3;0;9;Eth: connect
0;255;3;0;9;MCO:BGN:INIT GW,CP=R-NGA--,VER=2.1.1
0;255;3;0;9;MCO:BGN:BFR
IP: 192.168.0.172
0;255;3;0;9;MCO:BGN:STP
0;255;3;0;9;MCO:REG:NOT NEEDED
0;255;3;0;9;MCO:BGN:INIT OK,TSP=NA

IMHO it's a problem with initialize radio and sketch halted before Presentation procedure.
But why?

HI, I'd like to prepare node on mega+ethShield5100 without radio. Arduino 1.6.9; mysensor 2.1.1.
So I commented in the sketch line #define MY_RADIO_NRF24.
At the moment system startup with IP, but halted o the:
0;255;3;0;9;MCO:BGN:STP
0;255;3;0;9;MCO:REG:NOT NEEDED
0;255;3;0;9;MCO:BGN:INIT OK,TSP=NA
After that system restart startup procedure.
What I should change?

THX for your response. You save me a lot of evenings. So i try to create central gwEth on mega+eth5100+NRF with relays set.
HLD=High Level Design
Thanks a lot.

That's my first post, so Wlecome!
I'v got problems with my home automation project. I try to prepare HLD for it.
Please help me with my head of terms:
Domoticz serwer is runnig on Synology NAS (done)
GW eth<>nrf to connect with some nodes outside the home (soil, rain, wind) - gw is working fine (Promini+nrf)
Problems:

1. Is it possible to create gwEthernet on Mega2560?
2. Is it possible to use gwEthernet to connect some sensors, relays or rs485 modem?
   THX for all