How do I set the MQTT protocol level to 4 on Android?

[r14c]

My MQTT setup was working previously, but when I updated to 2.5.0 it seems like OwnTracks has set the protocol version to 3.1 which isn't supported on my broker. I was able to post location updates on the previous version using what I assume was protocol version 3.1.1

Is there any way to tell OwnTracks what protocol version to use?

Debug information

2024-07-21 15:36:02.111 I [DefaultDispatcher-worker-7] MQTTReconnectWorker: MQTT reconnect worker job started
2024-07-21 15:36:02.282 I [DefaultDispatcher-worker-7] MQTTMessageProcessorEndpoint$connectToBroker: Connecting to ssl://coms.sunshinegardens.org:8883?# timeout = 30s
2024-07-21 15:36:03.020 E [DefaultDispatcher-worker-7] MQTTMessageProcessorEndpoint$connectToBroker: MQTT client unable to connect to endpoint
Versión de protocolo incorrecta (1)
	at org.osmdroid.util.MyMath.createMqttException(SourceFile:10)
	at org.eclipse.paho.client.mqttv3.internal.ClientState.notifyReceivedAck(SourceFile:292)
	at org.eclipse.paho.client.mqttv3.internal.CommsReceiver.run(SourceFile:115)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:487)
	at java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:307)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
	at java.lang.Thread.run(Thread.java:1012)

Server Logs

coms-1  | 2024-07-21 22:38:52.094823+00:00 [info] (<0.22157.0>) Accepted connection [::ffff:172.21.0.1]:35516 -> [::ffff:172.21.0.9]:8883
coms-1  | 2024-07-21 22:38:52.677480+00:00 [warning] Rejected MQTT connection from ::ffff:172.21.0.1: Protocol error: Unsupported protocol name: MQIsdp (expected: MQTT)

[growse]

In the config editor, you should be able to set the value in the "Configuration management" activity:

But, you've raised a potential issue! The default for 2.5.0 is 3.1, and I'm not sure if that's a change from 2.4.x. If it is, will fix in the next version. Thanks!

[r14c]

i wasn't able to get the change from this edit function to apply, but i got the protocol level set to 4 using import/export. thanks for the tip!

[jpmens]

that sounds like a bug ...

[growse]

To the test suite!