I am sending the chip the following commands. The commands are successful with some sites, but apparently not with the one I am trying to test (app.sniffergps.com). They do however work when the web address is http://www.posttestserver.com and google.com. sparkfun.com and cnn.com also fail.
What am I doing wrong, and how can I make this work with my website?
This is what I am sending and receiving:
--> WIFI CONNECTED\r\n
--> WIFI GOT IP\r\n
--> link is not valid\r\n\r\nERROR\r\n
We have also tried
I found out through sniffing the packets when the command AT+CIPSTART was issued that I was receiving a Handshake Failed (40) error.
Apparently this chip does not support SNI, and that is causing the server to error.
Does anyone know if there is a way to make this chip support SNI?