Different behavior between DHCP and fixed IP when WiFi drops out and returns

[imroy]

Different behavior between DHCP and fixed IP when WiFi drops out and returns

[Testato]

I simply check befoure every publication if Wifi is connected and if Broker is connected.

• if i stop wifi (restart my router), the ESP reboot whit a WDT error. After that when the router reboot the connection automatically reconnect OK
• If i stop mosquitto daemon on my broker, when I restart it, the connection automatically reconnect OK whithout WDT problem.

BUT:
if i stop mosquitto daemon on my broker, and after i stop also the wifi connection, the ESP8266 freeze, no WDT error, only freeze whithout any activity. I must reset manually the ESP.

May you try this scenario also ? this is worst that the auto WDT reboot, because you must reset or remove power to the module.

I will try whit fixed IP on ESP

[av1024]

@Testato Confirmed partially.
Looks like there is wifi error. My ESP resets with 'beacon timeout' and by WDT. BUT! It freezes after wdt reset, not starting my code. Also I have constantly rebooting ESP while wifi router is off using arduino git build 61d9b1f4 . There is no reboots on older arduino version (git from May 28)
Log 1 (conditions same as yours):

* MQTT Publish sensors   2015.06.22 09:55:50.9
debug on
setDebugOutput to on
OK
esp-9e82d0> 
beacon timeout
rm 0
pm close 7 0 0/3921100541
Fatal exception (28):
epc1=0x4020918a, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000

 ets Jan  8 2013,rst cause:2, boot mode:(1,6)

 ets Jan  8 2013,rst cause:4, boot mode:(1,6)

wdt reset

After hardware reset:

scandone
Fatal exception (28):
epc1=0x402090ce, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000

 ets Jan  8 2013,rst cause:2, boot mode:(1,6)


 ets Jan  8 2013,rst cause:4, boot mode:(1,6)

wdt reset

[igrr]

Latest version should have a stack trace printed to console — can you please post that and your .elf file as well? Thanks.

[BJvDL]

Using version 1.6.4-835-g77d77e8 seems to have the problem solved.
Now the sketch uses DHCP and I can switch off the router without the WDT messing up.
After restoring the WiFi the ESP gets it's IP again and connects to the broker again to continue publishing

I can't post .elf files here, but here is the console

Publishing...
Publishing...
Publishing...
rm 0
pm close 7 0 0/74277806
reconnect
f -240, scandone
no Zonder_draad found, reconnect after 1s
reconnect
f 0, scandone
no Zonder_draad found, reconnect after 1s
reconnect
f -240, scandone
no Zonder_draad found, reconnect after 1s
reconnect
f 0, scandone
no Zonder_draad found, reconnect after 1s
reconnect
f -240, scandone
no Zonder_draad found, reconnect after 1s
reconnect
f 0, scandone
no Zonder_draad found, reconnect after 1s
reconnect
f -240, scandone
no Zonder_draad found, reconnect after 1s
reconnect
f 0, scandone
add 0
aid 3
pm open phy_2,type:2 0 0
cnt

connected with Zonder_draad, channel 3
dhcp client start...
ip:192.168.12.106,mask:255.255.255.0,gw:192.168.12.254
Connecting to MQTT broker (192.168.12.3) as 18:FE:34:A0:C5:77
Connected to 192.168.12.3
Publishing...
Publishing...
Publishing...

[Testato]

here also solved whit 1.6.4-835-g77d77e8

• No wdt reboot after wifi router switch off
• No freeze if i stop brocker and after switch off the wifi router

Thanks @igrr

[itProfi]

The same problem! Version is 1.6.5-804-g2d340c7 - lastest...

[Testato]

nope,
your version is 1.6.4, 1.6.5 do not exist (it is a tag error)
For use the g77d77e8 build you must use the development .json link

[itProfi]

No error, in file http://arduino.esp8266.com/staging/package_esp8266com_index.json -we see
"url":"http://arduino.esp8266.com/staging//esp8266-1.6.5-804-g2d340c7.zip",
"archiveFileName":"esp8266-1.6.5-804-g2d340c7.zip",
and this version is istal from internet for all at this time...(

[Testato]

g2d340c7 is the actual developmen version (the 1.6.5 number become from arduino repository, it is not important here, @igrr can clear this point)
On g2d340c7 i do not have problem
Are you removed oldest version from C:\Users\win7\AppData\Roaming\arduino15 directory ?