Modbus not working after latest OS update

[Tontze]

Describe the issue you are experiencing

Modbus not working, connection timeout.

What operating system image do you use?

generic-x86-64 (Generic UEFI capable x86-64 systems)

What version of Home Assistant Operating System is installed?

Home Assistant OS 10.5

Did you upgrade the Operating System.

Yes

Steps to reproduce the issue

1. Upgrade HaOs

Anything in the Supervisor logs that might be useful for us?

Logger: homeassistant.components.modbus.modbus
Source: components/modbus/modbus.py:400
Integration: Modbus (documentation, issues)
First occurred: 13:39:57 (1 occurrences)
Last logged: 13:39:57

Pymodbus: enervent: Modbus Error: [Connection] ModbusTcpClient(192.168.1.15:502): Connection unexpectedly closed 0.000667572021484375 seconds into read of 8 bytes without response from slave before it closed connection

Anything in the Host logs that might be useful for us?

2023-08-27 13:41:56.425 DEBUG (SyncWorker_4) [pymodbus.logging] Connection to Modbus server established. Socket ('192.168.1.7', 32780)
2023-08-27 13:41:56.425 DEBUG (SyncWorker_4) [pymodbus.logging] Current transaction state - WAITING_FOR_REPLY
2023-08-27 13:41:56.425 DEBUG (SyncWorker_4) [pymodbus.logging] Running transaction 180
2023-08-27 13:41:56.426 DEBUG (SyncWorker_4) [pymodbus.logging] SEND: 0x0 0xb4 0x0 0x0 0x0 0x6 0x0 0x3 0x0 0xd 0x0 0x1
2023-08-27 13:41:56.426 DEBUG (SyncWorker_4) [pymodbus.logging] New Transaction state "SENDING"
2023-08-27 13:41:56.427 DEBUG (SyncWorker_4) [pymodbus.logging] Changing transaction state from "SENDING" to "WAITING FOR REPLY"
2023-08-27 13:41:56.444 DEBUG (SyncWorker_4) [homeassistant.components.modbus.modbus] Pymodbus: enervent: Modbus Error: [Connection] ModbusTcpClient(192.168.1.15:502): Connection unexpectedly closed 0.015811681747436523 seconds into read of 8 bytes without response from slave before it closed connection

System information

System Information

version	core-2023.8.4
installation_type	Home Assistant OS
dev	false
hassio	true
docker	true
user	root
virtualenv	false
python_version	3.11.4
os_name	Linux
os_version	6.1.45
arch	x86_64
timezone	Europe/Helsinki
config_dir	/config

Home Assistant Community Store

GitHub API | ok -- | -- GitHub Content | ok GitHub Web | ok GitHub API Calls Remaining | 4681 Installed Version | 1.32.1 Stage | running Available Repositories | 1276 Downloaded Repositories | 22

Home Assistant Cloud

logged_in | false -- | -- can_reach_cert_server | ok can_reach_cloud_auth | ok can_reach_cloud | ok

Home Assistant Supervisor

host_os | Home Assistant OS 10.5 -- | -- update_channel | stable supervisor_version | supervisor-2023.08.1 agent_version | 1.5.1 docker_version | 23.0.6 disk_total | 234.0 GB disk_used | 15.8 GB healthy | true supported | true board | generic-x86-64 supervisor_api | ok version_api | ok installed_addons | Mosquitto broker (6.2.1), Zigbee2MQTT (1.32.2-1), Studio Code Server (5.10.1), Terminal & SSH (9.7.1), FTP (4.7.1), Z-Wave JS UI (1.15.7), ESPHome (2023.8.2), Home Assistant Google Drive Backup (0.111.1), MQTT Explorer (browser-1.0.1)

Dashboards

dashboards | 1 -- | -- resources | 11 views | 7 mode | storage

Recorder

oldest_recorder_run | August 18, 2023 at 10:27 -- | -- current_recorder_run | August 27, 2023 at 13:39 estimated_db_size | 380.11 MiB database_engine | sqlite database_version | 3.41.2

Sonoff

version | 3.5.2 (2ad1cd7) -- | -- cloud_online | 3 / 3 local_online | 3 / 3

Additional information

No response

[agners]

Can you double check if this is really the operating system's fault by downgrading to the previous version again? (E.g. using ha os update --version 10.4)?

[Tontze]

Hm, does not seem to work after downgrading either, which is weird since it did work and stopped working after update ?

[Tontze]

Ok, i rebooted our home heating, and it came online after that.. So no problems here, i wish i had thought that earlier ..