Everything works perfectly in my home, on a test access point having WPA2-PSK [AES] security. Security key is 8 characters.
When I test my widget in a health care building I service, with the same SSID name and security key, the ESP8266 will not connect.
Using an Android phone & iPhone, both connect at each locations with same credentials.
What might cause this failure to connect, a protocol type difference or limitation?