Failed to perform the action update/install. Error updating Home Assistant Core: 'HomeAssistantCore.update' blocked from execution, no host internet connection

Hello everyone,

I noticed I’ve been getting this error lately. Everything else runs fine (ESPHome device updates, pulling weather data, cloud API’s, Cloudflared, Home Assistant Cloud, etc etc) but for some reason I cannot do any updates without redirecting the DNS server to either my Home Assistant’s IP or to CloudFlare DNS

Context:
Home Assistant is running on a MeLE Fanless Mini PC Quieter3Q
I’m running AdGuard Home on my Home Assistant instance. My current DNS settings point to my router at 192.168.1.1. Home Assistant is at 192.168.1.2.
If I change my DNS to 192.168.1.2 in network settings, updates start working, but everything else stops (can’t download weather info for example)
Adguard Home is running through Cloudflare DoH
System has been restarted though Home Assistant AND power cycled completely

### Home Assistant Supervisor

|Host operating system|Home Assistant OS 15.2|
| --- | --- |
|Update channel|stable|
|Supervisor version|supervisor-2025.05.5|
|Agent version|1.7.2|
|Docker version|28.0.4|
|Disk total|457.7 GB|
|Disk used|31.1 GB|
|Healthy|true|
|Supported|true|
|host_connectivity|false|
|supervisor_connectivity|true|
|ntp_synchronized|true|

  ~ ha network info
docker:
  address: 172.30.32.0/23
  dns: 172.30.32.3
  gateway: 172.30.32.1
  interface: hassio
host_internet: false
interfaces:
- connected: false
  enabled: false
  interface: wlp0s20f3
  ipv4:
    address: []
    gateway: null
    method: disabled
    nameservers: []
    ready: false
  ipv6:
    addr_gen_mode: default
    address: []
    gateway: null
    ip6_privacy: default
    method: disabled
    nameservers: []
    ready: false
  mac: *********
  primary: false
  type: wireless
  vlan: null
  wifi: null
- connected: true
  enabled: true
  interface: enp1s0
  ipv4:
    address:
    - 192.168.1.2/24
    gateway: 192.168.1.1
    method: static
    nameservers:
    - 192.168.1.1
    ready: true
  ipv6:
    addr_gen_mode: default
    address:
    -***********
    gateway: null
    ip6_privacy: default
    method: disabled
    nameservers: []
    ready: true
  mac:***********
  primary: true
  type: ethernet
  vlan: null
  wifi: null
supervisor_internet: true
➜  ~ 

Installation method Home Assistant OS
Core 2025.6.0
Supervisor 2025.05.5
Operating System 15.2
Frontend 20250531.2

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