ESP8266 Community Forum

Hi,
I was trying to develop a simple temperature and humidity logger using esp8266 and dht22. Everything went smoothly, I had a version which worked for over 2 weeks and logged everything nicely, going into deep sleep between readings. Than, I started to add new features and suddenly my esp stopped connecting to the wi-fi network. As far as I can tell, radio is working, but IP address is not requested from the DHCP server. I thought, that maybe my binary is to big or something like that - anyway, I got back to the source version, which was working OK for me. And the problem didn't stop! No matter what software version I flash (I even tried other firmwares), my ESP is starting (I can see DBG messages from my init function, but never connects to the INternet. The actual log is

and so on. What can be wrong? Any ideas? How can I debug this further? How do you cope with error handling at all?

Thanks for any help.

How about this :
void wifi_config()
{
// Wifi configuration
char ssid[32] = SSID;
char password[64] = PASSWORD;
struct station_config stationConf;

//Set station mode
wifi_set_opmode( 0x1 );

stationConf.bssid_set = 0;

//Set ap settings
os_memcpy(&stationConf.ssid, ssid, 32);
os_memcpy(&stationConf.password, password, 64);
wifi_station_set_config(&stationConf);

}

//Init function
void user_init()
{
wifi_config();
}

You need clear the config settings. To do so,
write blank.bin to 0x7e000 and esp_init_data_default.bin to 0x7c000.

Hi guys,
Thanks for your support. But...

Both of your hints are useful, the thing with

maybe even more so, as it is really required to be cleared.
But, I added that line in my code, flashed it - and it didn't help. OK, so I used the second hint, flashed default settings, and - unfortunately - changed something in my code or something else I'm not sure about - and it worked. At least, for some time, because suddenly yesterday the same bug occurred. This time I got

in my code, I flashed default settings and nothing helps - esp is connecting to my wifi, but there is no line showing what IP address it got - it seems again as it is not getting the IP from DHCP server (which works perfect for all other devices in the network).
Here's the code I'm developing:
https://github.com/piontec/esp_rest/blob/master/user/config.c
please have a look at lines 56 (processWifiSet()) and 123 (processRestart()).
The output I'm getting is:


Any help please?