Zyxel T56

[Velo1901]

Zyxel device model
Example: T56

Integration version
Example: 0.2.7

Describe the bug
Login show error 'Fail to Connect'

Expected behavior
To get access to T56 modem

To Reproduce
Every time I login in.

Screenshots
If able, add screenshots to help explain your problem.

Log info

Logger: custom_components.ha_zyxel.config_flow
Bron: custom_components/ha_zyxel/config_flow.py:47
integratie: Zyxel (documentatie, problemen)
Eerst voorgekomen: 10:35:48 (3 gebeurtenissen)
Laatst gelogd: 16:24:33

Unable to connect to Zyxel device: ('Connection aborted.', BrokenPipeError(32, 'Broken pipe'))

Logger: custom_components.ha_zyxel.config_flow
Bron: custom_components/ha_zyxel/config_flow.py:73
integratie: Zyxel (documentatie, problemen)
Eerst voorgekomen: 10:35:48 (3 gebeurtenissen)
Laatst gelogd: 16:24:33

Bad logger message: First attempt failed ((ConnectionError(),))

Logger: nr7101.nr7101
Bron: custom_components/ha_zyxel/init.py:52
integratie: Zyxel (documentatie, problemen)
Eerst voorgekomen: 20 oktober 2025 om 13:00:39 (186581 gebeurtenissen)
Laatst gelogd: 16:24:47

Error processing JSON response: 'utf-8' codec can't decode byte 0x96 in position 0: invalid start byte
Error processing JSON response: 'utf-8' codec can't decode byte 0x8e in position 0: invalid start byte
Error processing JSON response: 'utf-8' codec can't decode byte 0xda in position 1: invalid continuation byte
Error processing JSON response: 'utf-8' codec can't decode byte 0xb0 in position 7: invalid start byte
Error processing JSON response: 'utf-8' codec can't decode bytes in position 1-2: invalid continuation byte

[zulufoxtrot]

Thanks for the bug report.
The "broken pipe error" suggests a low-level network error or a problem on the router side.
Is the connection between the router and your HA instance stable?
Can you connect to the router via your web browser without issues?

[Velo1901]

hello,Yes, no problems.👋🏻 Fijne Dag…Karel DelvoijeDelvoije Fotografie0622550986Op 22 okt 2025 om 18:35 heeft Youri Le Cottier ***@***.***> het volgende geschreven:zulufoxtrot left a comment (zulufoxtrot/ha-zyxel#43) Thanks for the bug report. The "broken pipe error" suggests a low-level network error or a problem on the router side. Is the connection between the router and your HA instance stable? Can you connect to the router via your web browser without issues? —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you authored the thread.Message ID: ***@***.***>

[Velo1901]

Hello, I've moved the Home Assistant Green closer to the router and the login was successful but there is only one error:

Logger: nr7101.nr7101
Bron: custom_components/ha_zyxel/init.py:52
integratie: Zyxel (documentatie, problemen)

Error processing JSON response: 'utf-8' codec can't decode byte 0xad in position 0: invalid start byte
Error processing JSON response: 'utf-8' codec can't decode byte 0x97 in position 4: invalid start byte
Error processing JSON response: 'utf-8' codec can't decode byte 0xb5 in position 1: invalid start byte
Error processing JSON response: 'utf-8' codec can't decode byte 0x82 in position 1: invalid start byte
Error processing JSON response: 'utf-8' codec can't decode byte 0xf9 in position 3: invalid start byte

[Velo1901]

I also started the debug-logging and this is the file.

home-assistant_ha_zyxel_2025-10-23T08-01-44.742Z.log