Cannot connect to Websocket

[Simon-Str]

Describe the issue you are experiencing

Connection to websocket cannot established
v5.1.2 and v5.1.1 tested, both failed
works on v5.0.4 so this seems the only current fix

What type of installation are you running?

Home Assistant OS

Which operating system are you running on?

Home Assistant Operating System

Which add-on are you reporting an issue with?

Matter Server

What is the version of the add-on?

5.1.2

Steps to reproduce the issue

1. update to 5.1.2
2. try to connet to the websocket
3. see the error message

System Health information

System Information

version	core-2024.2.1
installation_type	Home Assistant OS
dev	false
hassio	true
docker	true
user	root
virtualenv	false
python_version	3.12.1
os_name	Linux
os_version	6.1.63-haos-raspi
arch	aarch64
timezone	Europe/Berlin
config_dir	/config

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 11.5
update_channel	stable
supervisor_version	supervisor-2024.01.1
agent_version	1.6.0
docker_version	24.0.7
disk_total	28.6 GB
disk_used	6.4 GB
healthy	true
supported	true
board	rpi4-64
supervisor_api	ok
version_api	ok
installed_addons	Silicon Labs Multiprotocol (2.4.4), Matter Server (5.0.4), Advanced SSH & Web Terminal (17.1.0), Mosquitto broker (6.4.0), File editor (5.8.0)

Dashboards

dashboards	2
resources	0
views	1
mode	storage

Recorder

oldest_recorder_run	31. Januar 2024 um 08:33
current_recorder_run	10. Februar 2024 um 18:28
estimated_db_size	30.25 MiB
database_engine	sqlite
database_version	3.44.2

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

No response

Anything in the add-on logs that might be useful for us?

No response

Additional information

No response

[Simon-Str]

Rollback to Matter Server Addon V5.0.4 is my current fix

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[Simon-Str]

I don't know why nobody mentioned this and I am also a little bit ashamed that I didn't see it right away.
Solution:
Enable Websocket access:
Matter Server Addon -> Configuration -> [at the bottom] Network -> enable Port and type in e.g. 5580

Now I can commission Matter Thread Devices without resetting the Google Play Services everytime my thread network changes (development thread networks).