1 Meross Ghost Entity & VLAN Routing Fix#

1.1 The Issue#

When deleting and re-adding a Meross device, Home Assistant might refuse to connect and continuously restore the old ghost entity name while throwing a KeyError and AttributeError: 'NoneType' object has no attribute 'attach' in the logs.

1.2 Why it happens#

1. The Registry Ghost: When a device is deleted from the UI, Home Assistant sometimes keeps its UUID permanently trapped in the hidden deleted_devices and deleted_entities recycle bins inside the .storage registry. Whenever you re-add the device, HA automatically restores the old, corrupted data.
2. The Cloud Profile Cache: The meross_lan integration caches the Meross Cloud Profile. If you re-add a device to the Meross app, meross_lan may still use an expired offline cache (e.g., meross_lan.profile.xxxxxx) which lacks the new UUID or MQTT keys, causing a KeyError.
3. The VLAN Block: If Home Assistant is on a different VLAN than the IoT devices and HTTP (Port 80) is blocked, meross_lan cannot push the local MQTT configuration to the new device, leaving it “Unavailable”.

1.3 The Complete Fix & Automation Script#

Target SSH Host: root@10.1.2.200

1 Home Assistant SSH Configuration#

1.1 Add SSH Keys#

To enable passwordless SSH access to your Home Assistant instance, you must have the SSH & Web Terminal add-on installed and Advanced Mode enabled for your user profile.

1.2 Configure Authorized Keys#

1. Open the terminal within Home Assistant or via a console.
2. Edit the authorized keys file:

nano /data/.ssh/authorized_keys

3. Paste your public SSH key (e.g., from your Mac Studio or MacBook Air) into the file.
4. Save and exit (Ctrl+O, Enter, Ctrl+X).

Ensure the SSH add-on configuration has the correct port (usually 22 or 2222) and that the “SFTP” or “SSH” services are started in the add-on’s dashboard.

ser2net Zigbee USB Server Configuration#

This setup allows you to host a Zigbee USB dongle on one machine (e.g., MMDocker/Proxmox 230) and connect to it over the network from Home Assistant.

1. Installation#

Reference: Peter Kieser - ser2net and Zigbee Coordinator

# Install the software
apt-get update && apt-get install ser2net -y

# Verify version and status
ser2net -v
systemctl status ser2net

2. Identify USB Hardware#

# Locate the specific device ID (stable path)
ls -lah /dev/serial/by-id/

# Get detailed info for the specific port (if needed)
udevadm info -q all -a -n /dev/ttyUSB0

# SkyConnect
ls /dev/serial/by-id/usb-Nabu_Casa_SkyConnect_v1.0*

3. Configuration (Version 4.0+)#

Modern versions of ser2net use YAML configuration files.