I have a es8266 + avr running a webserver, esp8266 updated last month but i dont remember the version of the AT firmware but is new. The code in the avr is write in C and compiled using avr-gcc.
Local acess everything runs fine, android app works well, curl gets data properly but when i try to acess by the WAN the webserver receive comands, retrieve the data to the user but conection dont close making the app trows a exception and curl runs for a long time.
i tried:
on the router:port forwarding, DMZ, change ports (80,8080,8181), tried no-ip and acess from the ip.
A resume of my configuration
ESP8266-01 FIRMWARE AT (2.+)
ATMEGA328p @ 12mhz and 3.3v
UART @ 250000bps (not software serial)
I think the problem is with my ISP but if someone have any idea that a i can try before call them will be welcome!
thanks!