HA HassIO without internet access

Configuration
1

I would like to know if HA needs internet access to work properly.

When I boot it with internet access, it boots without any problem.
When I boot it without internet access, most of the times the system seems to boot, I can ping the machine (Rasp Pi), however I cannot access the HA web interface.

Is this an NTP problem? Maybe another? How can I solve this so I can have my HA working without internet access.

(bellow you can check my system configuration. I am just using mqtt and switches. I have no need to “sun related stuff” or others)

Thanks

System:

Supervisor
Version 2020.10.0
Operating System
HassOS 4.14
Add-ons
File editor, Mosquitto broker; Terminal&SSH; UniFi Controller

1 Like
2

Yes. Home assistant needs to contact an NTP server on starting. You could run your own GPS backed local NTP server.

3

Thanks for your help.

Does it happens only when booting or HA tries/needs to connect from time to time?

Do you know if it is possible to “deactivate this need” of HA having to contact an NTP server?

Thanks

2 Likes
4

I am using a raspberry pi to run hassio.io
Since I have a PC (windows 7) always running on the same network I decided to activate the built-in NTP server/service (IP: 192.168.1.5).

Configured HA NTP to synchronize with that machine in case other servers fail.
[Time]
NTP=time1.google.com time2.google.com time3.google.com
FallbackNTP=192.168.1.5

also tried to configure it as main NTP server (Does anyone sees any problem with this configuration?)

Tried by creating the “CONFIG/timesyncd.conf” file in the boot partition but it doesn’t seem to work.
Also tried using a CLI and editing directly the file “/etc/systemd/timesyncd.conf” . Neither “systemd” folder nor the “timesyncd.conf” existed, so I had to create both (Does anyone sees any problem with this? Maybe I am editing in the wrong place)

Thanks

5

In the meanwhile I found out that when I start HA without internet access only the container below starts…

796e9a0644b2 homeassistant/armv7-hassio-observer:2020.10.1 "/init" 3 days ago Up About a minute 0.0.0.0:4357->80/tcp hassio_observer