The serial port is not open! on 15.x

[systems-monitor]

Checklist

• [x] I am not using Home Assistant. Or: a developer has told me to come here.
• [x] I have checked the troubleshooting section and my problem is not described there.
• [x] I have read the changelog and my problem is not mentioned there.

Deploy method

Docker

Z-Wave JS UI version

10.1.5.c36c719

ZwaveJS version

15.0.5

Describe the bug

After 12-48 hours connectivity to controller seems to die and not self heal. ERROR Z-WAVE-SERVER: Message dropped because of an unexpected error: The serial port is not open! (ZW0202) ZWaveError: Message dropped because of an unexpected error: The serial port is not open! (ZW0202)

Using ZNET IP controllers. zwave-js-ui: 10.1.5.c36c719 zwave-js: 15.0.5 All dockers on the same Ubuntu 20.x

Of four devices/Zwave UI dockers, the two that have been upgraded to 15.0.5 are showing this behavior. (one wired, one wifi) Each of the two networks at issue are using a different zwave chip, while same chips on other two networks are unaffected. The two still running 14.x are not running without issues.

A reset from UI recovers with no issues.

Time: 2025-04-16 20:34:53.781

zwavejs_2025-04-16.log z-ui_2025-04-16.log

To Reproduce

12-48 hours normal running. No specific time of day or activity seems to correlate.

Expected behavior

Detect connection failure and attempt reconnect or reset.

Additional context

No response