Unhandled exception. Microsoft.Azure.Devices.Client.Exceptions.IotHubException: Request 817bda7c-6fc4-40e0-8946-93eb851fcb12 returned status 403 [Bug Report] about azure-iot-sdk-csharp

[timtay-microsoft]

Can you share what the sample code being run here is? And can you try using AMQP instead of MQTT to see if you get the same error?

[timtay-microsoft]

Depending on your code, that 403 may be a 403002 which just means you can't send more telemetry today unless you upgrade your Hub to handle more messages per day or it may be 403006 which means you have too many file uploads happening simultaneously.

[addy1997]

Hi @timtay-microsoft ,

Thanks for replying.

after getting into the directory, when I run dotnet run. It shows this error on Ubuntun but not on Windows.

[timtay-microsoft]

Do you see this 403 error consistently? Or just sometimes?

[addy1997]

Do you see this 403 error consistently? Or just sometimes?

Sometimes, but when I tried running it on Ubuntu yesterday, it didn't show up.

[timtay-microsoft]

Can you check the Azure Portal to see if your IoT hub has been reaching its daily limit for messages allowed?

[addy1997]

I am primarily sending these messages to the hub outside my subscription. My daily message quota shows 4,00,000 messages.