Comments (7)
It seems to be, that I am running into the same/a very similar problem. When using Version 1.42.2 deviceClient.SendEventAsync
runs into a Timeout and throws an IotHubCommunicationException
with Transient network error occurred, please retry
. Returning to Version 1.4.0 resolves this issue.
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We suspect this is related to a .NET 8 bug in DotNetty (the MQTT library we use). The fix for this bug in DotNetty has been merged and we are working on putting out a new DotNetty release. Once we have released DotNetty, we'll put out a release of this SDK with the new DotNetty version which should resolve this issue.
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Do you see this same behavior on .NET 7 as well? And do you see it when using AMQPS as well?
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Besides NET8, I only have the NET6 SDK installed, for which the issue does not occur (same duration for 1.42.0 and 1.42.2).
The issue also does not occur when using AMQP with 1.42.2 on NET8.
from azure-iot-sdk-csharp.
deviceClient.SendEventAsync
works in .NET7 with 1.42.2- it works in .NET8 with AMQP but not with MQTT (or MQTT_TCP_ONLY)
- it works in .NET8 with 1.42.0
It seems that the client stops to communicate with the IoT Hub after the Server Hello Done.
from azure-iot-sdk-csharp.
Looks like DotNetty is out with new version, I have added direct refereces to DotNetty and it looks like it's working now
<PackageReference Include="DotNetty.Codecs.Mqtt" Version="0.7.6" />
<PackageReference Include="DotNetty.Handlers" Version="0.7.6" />
from azure-iot-sdk-csharp.
This behavior should be fixed in the new release:
https://github.com/Azure/azure-iot-sdk-csharp/releases/tag/2024-03-28
from azure-iot-sdk-csharp.
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