Attempt to decode JSON with unexpected mimetype: text/plain; charset=utf-8

[ChristBKK]

The problem

Hi there,

I get the problem since the last updates and can't change my Network Settings anymore. I got a USB WIFI Dongle and trying to enable IPv4 and get this error. The USB Wifi dongle worked normal but I disabled the IP and then wanted to enable it again and getting this error now. I also restarted the whole server and HAOS multiple times even took out the usb dongle.

then the logs show this

Logger: homeassistant.components.hassio.handler
Source: components/hassio/handler.py:612
integration: Home Assistant Supervisor (documentation, issues)
First occurred: 12:49:19 PM (1 occurrences)
Last logged: 12:49:19 PM

Client error on /network/interface/wlp0s4u1/update request 0, message='Attempt to decode JSON with unexpected mimetype: text/plain; charset=utf-8', url=URL('http://172.30.32.2/network/interface/wlp0s4u1/update')

and

Logger: homeassistant.components.hassio
Source: components/hassio/websocket_api.py:135
integration: Home Assistant Supervisor (documentation, issues)
First occurred: 12:49:19 PM (1 occurrences)
Last logged: 12:49:19 PM

Failed to to call /network/interface/wlp0s4u1/update -

What version of Home Assistant Core has the issue?

core-2024.5.4

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Core

Link to integration documentation on our website

No response

Diagnostics information

Example YAML snippet

No response

Anything in the logs that might be useful for us?

No response

Additional information

No response

[home-assistant]

Hey there @home-assistant/supervisor, mind taking a look at this issue as it has been labeled with an integration (hassio) you are listed as a code owner for? Thanks!

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