Thingspeak - upload stopped working on all channels simultaneously

I'm on a free licence. My uploads stopped a day ago. Account shows that messages are not expired.

License Type: Free

Expiration Date: 27 Nov 2020

Available Remaining

Messages 3 000 000 2 899 830

Channels 4 1

Answer 1

[Vinod]

I think this has to do with your device connectivity or something on that end.

To confirm, can you try logging in to ThingSpeak, creating a new channel and ingesting a single point into the channel using your browser? Instructions on ingesting data into the channel from a browser are in the "API keys" tab of your channel (or, see documentation here https://www.mathworks.com/help/thingspeak/writedata.html)

If it works from the browser, you can focus your investigations on the device end.

[Raimondas Valuckas]

Did that. Got response -1, meaning I don't have access to the channel.

[Hans Scharler]

A "-1" means that the Write API Key is not valid or not included.

[Raimondas Valuckas]

-1 was of my mistake. Now did everything carefully. All channels work using API request from the browser. Going to check my ESP code.

[Raimondas Valuckas]

Problem solved. There was an issue with mqtt server.

[Vinod]

Can you provide more details -- which MQTT server had issues? What code changes did you make to resolve the issues?

[Raimondas Valuckas]

cloudmqtt.com stopped to accept requests for some reason so my code entered endless loop. Just restarted the user on cloudmqtt.com and everything went fine.