| Issues and Limitations |
| ---------------------- |
| |
| - Unable to connect |
| Caused by: |
| Incorrect TCP flags handling from the Zephyr IP Stack. |
| Workaround: |
| Reset the board. |
| |
| - Publish error |
| - Subscribe error |
| Caused by: |
| The MQTT broker is sending another MQTT message while the |
| client is still processing the QoS handshake from a |
| previous MQTT message. MQTT QoS in Zephyr is implemented |
| in a synchronous way. For asynchronous implementations, see: |
| http://git.eclipse.org/c/mosquitto/org.eclipse.mosquitto.git/tree/ |
| Workaround 1: |
| Reduce the speed/amount of messages received by the |
| application. |
| Workaroung 2: |
| Use the mqtt_read function to handle all the incoming |
| messages. |
| |
| - RX or TX error |
| Caused by: |
| Perhaps the rx/tx timeouts are too short for the LAN. |
| Workaround: |
| Increase the rx or tx timeout. |
| See: publisher/src/netz.c, struct netz_ctx_t. |
