Login on smartphone with OpenVPN no longer possible after update to 2023.12.3

Configuration
1

After updating to 2023.12.3, I can no longer connect to HA when I connect to the home network via OpenVPN. Normally, the HA start page would be displayed directly, but I only see the HA logo and no error message when I call up the page.

The login screen is skipped with the following settings:

homeassistant:
  auth_providers:
    - type: trusted_networks
      trusted_networks:
        - 192.168.178.0/24
        - 192.168.179.0/24
      allow_bypass_login: true

The IP of the smartphone is 192.168.179.2

After downgrading to version 2023.11.3, everything works perfectly again.

Any ideas ?

2

Does nobody have any idea where the problem could lie?

3

Do you have the default homeassistant entry as an auth providor? Just curious if that gives you the Home Assistant Local login option or if it changes what you see. Is this in a browser or using the Companion app?

    - type: homeassistant
4

I have also adapted this again according to the documentation, like this:

homeassistant:
  auth_providers:
    - type: trusted_networks
      trusted_networks:
        - 192.168.178.0/24
        - 192.168.179.0/24
      allow_bypass_login: true
    - type: homeassistant

But that didn’t help either.

After testing OpenVPN with another notebook via a mobile hotspot, it turned out to be a problem with IPv4 and IPv6.

The Internet connection where HA is running has an IPv4 address.
The mobile phone had IPv4/IPv6 dual stack activated.

After I had given the mobile phone only an IPv4 address, no IPv6, it worked again directly.

I cannot understand why HA 2023.11 worked with IPv4/IPv6 Dual Stack and 2023.12 did not.

5

Try to refresh your browser session. On Windows PCs ctrlF5.