Hi,

I have run into this error:

+IPD,288:HTTP/1.1 400 Bad Request
Server: awselb/2.0
Date: Fri, 20 Sep 2019 20:40:37 GMT
Content-Type: text/html
Content-Length: 138
Connection: close

400 Bad Request

This is my post data

http://api.thingspeak.com/update.json?api_key=XXXXXXXXXXXXXXX&field1=73
POST /update HTTP/1.1
Host: api.thingspeak.com
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 207
CLOSED

If I copy and paste the URL into a browser, I can see the values being updated on the thingspeak.com server.
Any idea, what would be the issue ?

The log looks thus:
WIFI CONNECTED
WIFI GOT IP
OK
+CIFSR
+CIFSR:APIP,"192.168.4.1"
+CIFSR:APMAC,"ee:fa:bc:a9:1e:fd"
+CIFSR:STAIP,"192.168.1.36"
+CIFSR:STAMAC,"ec:fa:bc:a9:1e:fd"
OK
+CIPSTART="TCP","api.thingspeak.com",80
CONNECT
OK
+CIPSEND=214
OK
>
Recv 214 bytes
SEND OK

+IPD,288:HTTP/1.1 400 Bad Request
Server: awselb/2.0
Date: Fri, 20 Sep 2019 21:12:43 GMT
Content-Type: text/html
Content-Length: 138
Connection: close

400 Bad Request

CLOSED

Any suggestions ?

Thanks