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Offline-first message buffer with sequence-number-ordered replay for ManagedClient

Status: Open.

#2249 In dotnet/MQTTnet;

· rambudithe opened on May 7, 2026

MqttClient keep-alive silently swallows PING timeout, never raises DisconnectedAsync

Status: Open.

#2248 In dotnet/MQTTnet;

· aco-mreble opened on May 7, 2026

DisconnectedAsync is not raised if (failed) Publish attempts were made

bugSomething isn't workingSomething isn't working

Status: Open.

#2244 In dotnet/MQTTnet;

· StefanLochauMF opened on Apr 14, 2026

Create version of MQTTnet.Extensions.ManagedClient that is compatible with version 5 of MQTTnet

feature-requestNew feature or requestNew feature or request

Status: Open.

#2243 In dotnet/MQTTnet;

· dwe-alan opened on Apr 11, 2026

CONNECT packet must have at least 7 bytes.

questionIt is a question regarding the projectIt is a question regarding the project

Status: Open.

#2236 In dotnet/MQTTnet;

· andycheng-jiuluomall opened on Feb 25, 2026

Subscriber stops receiving mid-run with QoS2 and 200KB payloads (still connected, no errors)

bugSomething isn't workingSomething isn't working

Status: Open.

#2234 In dotnet/MQTTnet;

· ooredm opened on Feb 12, 2026

MqttClientDefaultCertificateValidationHandler not used as default handler for MqttClient

bugSomething isn't workingSomething isn't working

Status: Open.

#2233 In dotnet/MQTTnet;

· Levi--G opened on Feb 7, 2026

Ambiguity in MQTTnet’s Support for MQTT 5 “Request Response Information” and “Request Problem Information

Status: Open.

#2221 In dotnet/MQTTnet;

· hadilbenmoussa opened on Nov 24, 2025

Intermittent Disconnections Between IoT Edge Module and Mosquitto MQTT Broker

Status: Open.

#2220 In dotnet/MQTTnet;

· shourikasa opened on Nov 19, 2025

Question/Feat: Expose MQTT Client connection status

questionIt is a question regarding the projectIt is a question regarding the project

Status: Open.

#2219 In dotnet/MQTTnet;

· WizMe-M opened on Nov 7, 2025

MQTTnet 4.3.3.952 - ClientId and Payload mismatch under high load

bugSomething isn't workingSomething isn't working

Status: Open.

#2203 In dotnet/MQTTnet;

· Kirubhashini07 opened on Sep 16, 2025

Incorrect handling of Topic Alias?

Status: Open.

#2199 In dotnet/MQTTnet;

· swiergot opened on Aug 23, 2025