Nope, I never resolved it. So I've build a USB gateway, thats is working great for 4 months now.

It looks like the problem that I also have with my gateway described in my topic

When no controller is connected and a message is received it doesn't crash.

It only crashes when a controller is connected and the gateway receives a radio message.
(I used the tempsensor sketch and the binaryswitch sketch to test)
(But the testmessage : 42;1;1;47;0;Hello didn't crash the gateway)

Right now I just uploaded the SerialGateway sketch to 1 of my sensors and that is working correctly with my Domoticz Controller. But I still prefer a wifi gateway.

Hmmm, I've build the most basic actuator "BinarySwitchSensor" and again when it connects, the gateway crashes. I'm totaly lost here.

Thanks hek & mfalkvidd.
Reading your replies made me think that maybe the problem isn't the gateway, but the sensor sending some crap.
I will build a new sensor toninght and test it.

When I use a telnet session from Putty, the crash does occur.

When i connect from linux with nc, the crash doesn't occur.

What could be the problem ? I exactly followed the build instructions. I even bought the hardware from the ebay-links provided.

Yesterday I installed 1.5.1 Development.
Today I installed 1.5.1 master

Still having the same crash when a sensor connects to the gateway.

To rule out if the problem is on the controller side, I installed a different controller (MajorDomo) to see how the gateway reacts.

Unfortunately the gateway still crashes.

I also tried to use 1.5.1, but the ESP8266Gateway sketch won't even compile, so I'm stuck with no Gateway.

I did power it from my PC, so i tried your suggestion and powered it with an 'official' Raspberry Pi 2A power adapter. IMHO this is the most stable 2A power adapter.

Unfortunately it still crashes and reboots.

Today I've build a ESP8266 MySensors Gateway.

The gateway starts up and I can connect to it with my Domoticz Controller.

2015-11-06 22:24:19.180 MySensors: connected to: 192.168.15.150:5003
2015-11-06 22:24:19.181 MySensors: Gateway Ready...
2015-11-06 22:24:20.181 MySensors: Gateway Version: 1.5

ESP8266 MySensors Gateway
Connecting to YVER
...........Connected!
IP: 192.168.15.150
0;0;3;0;9;gateway started, id=0, parent=0, distance=0
Client 0 connected
0;0;3;0;14;Gateway startup complete.
Client 0: 0;0;3;0;2;Get Version
0;0;3;0;2;1.5

Next I've build a temperature sensor, but when the sensor try to connect to the gateway, the gateway crashes with the followinf output:

0;0;3;0;9;read: 255-255-0 s=255,c=3,t=3,pt=0,l=0,sg=0:
255;255;3;0;3;
Client 0: 255;255;3;0;4;1

ctx: cont
sp: 3ffeabd0 end: 3ffeaf10 offset: 01b0

>>>stack>>>
3ffead80:  3ffe97bf 000000ff 3ffe9850 40205288
3ffead90:  3ffe97bf 00000030 3ffe9850 402052d4
3ffeada0:  a8e1fcff 000000a8 3ffe9850 4020548b
3ffeadb0:  3ffe97bf 00000008 3ffe9850 40204cdb
3ffeadc0:  00000017 3ffe9850 00000011 000000ff
3ffeadd0:  000000ff 3ffe97b8 3ffe97bf 40203b81
3ffeade0:  0000000a 00000000 3ffeae4f 4020b73c
3ffeadf0:  ffffffff 3ffeae50 3ffe9850 00000004
3ffeae00:  00000000 00000000 3ffe97bf 4020101c
3ffeae10:  3ffe98b9 3fffdc20 3ffeaf3c 3ffe97b8
3ffeae20:  3ffe98ba 00000000 3ffeae4e 4020102c
3ffeae30:  000000ff 00000003 3ffe97bf 00000000
3ffeae40:  000000ff 00000000 3ffe97b8 40203262
3ffeae50:  3ffeafff 0000000e 3ffe98ba 00000000
3ffeae60:  000000ff 00000000 3ffe97b8 40203e78
3ffeae70:  000000ff 3ffe97bf 3ffeaf70 4020ae11
3ffeae80:  3ffe98ac 3ffe98ac 3ffeaf70 3ffeaf70
3ffeae90:  000000ff 3ffe97b8 3ffe97bf 40202501
3ffeaea0:  3ffe9ab0 3ffe98ac 00000000 40202784
3ffeaeb0:  3ffe8e40 00000000 000003e8 3ffe9c44
3ffeaec0:  00000000 3fff4c78 3fff4c08 3ffeaf3c
3ffeaed0:  00000000 0000000a 00000000 00000000
3ffeaee0:  40201c35 960fa8c0 00000000 3ffeaf3c
3ffeaef0:  3fffdc20 00000000 3ffeaf34 40201c92
3ffeaf00:  00000000 00000000 3ffe9ef0 40100378
<<<stack<<<

 ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1264, room 16
tail 0
chksum 0x42
csum 0x42
~ld

On the sensor side the serial output is:

sensor started, id=255, parent=0, distance=1
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=fail:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=fail:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:

When the Domoticz Controller is not connected the output of the gateway is :

ESP8266 MySensors Gateway
Connecting to YVER
.......Connected!
IP: 192.168.15.150
0;0;3;0;9;gateway started, id=0, parent=0, distance=0
0;0;3;0;9;read: 255-255-0 s=255,c=3,t=3,pt=0,l=0,sg=0:
255;255;3;0;3;
0;0;3;0;9;read: 255-255-0 s=255,c=3,t=3,pt=0,l=0,sg=0:
255;255;3;0;3;
0;0;3;0;9;read: 255-255-0 s=255,c=3,t=3,pt=0,l=0,sg=0:
255;255;3;0;3;

The output of the sensor is :

req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
sensor started, id=255, parent=0, distance=1
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:
req id
send: 255-255-0-0 s=255,c=3,t=3,pt=0,l=0,sg=0,st=ok:

What I tried my self:

• placed a decoupling capacitor on both radio's
• mounting the PCB's on a protoboard to minimize the distance between the controller and the radio by nit using dupont cables.
  

What am I missing and how can I get this setup to work ?
Any help/suggestion is appreciated.

I can confirm that. Just removed 1.6.6 and revert to 1.6.5 and now it is working instantly.
Thank you for the hint.

Maybe it's an option to edit the esp8266_gateway page and remove the + from Arduino 1.6.5+ and add a remark that it's not (yet) working on 1.6.6

I'm having the same problem.
Started with MySensors yesterday and tried to install the esp8266 WiFi Gateway.

Did a clean install of the Arduino IDE 1.6.6 and followed all steps described here

The result is the same as the topicstarter.