WebUI not responding

Installation
1

Setup:
OS: HA OS Version 17.1
Core Version: 2026.2.3
Infrastructure: VM in ESXi

I’ve seen several articales which indicate that other people are having problem with the UI running but the solutions haven’t helped.

  • I’ve seen references to entso-e - No idea what this is so i’m 99% confident that this is not the issue.
  • I’ve rebooted the VM - no change
  • I’ve run “core update” which was successful but no change
  • I’ve run “restart --safe-mode” - the UI still does not load
  • No additional plugins or integrations have been added/removed before or since the issue started.

Any ideas please?
Thanks

2

Can you ping the vm?

3

No I can’t.

No settings or IP addresses have changed, no firewall rules or blocks either

4

Check the console, see what IP it reports. Any vlan setup?

5

I dont know why the majority of problems come from installations on VM or Proxmox.

6

The IP is the correct local IP, as it always has been.
192.168.x.x

Heading to https://192.168.x.x:8123 (or http)
Just times out.

7

Seems so. No idea why though.
I’ve been running HA on a VM for the last 5 years with very little issue.

8

It’s a network issue if it does not respond to ping. Have you tried accessing from another device?

9

Can you access the ESXI ? , any other VM’s on the Machine ?

10

Yes I have.
It doesn’t respond

11

Yes I can.
I can access the Home Assistant VM via the ESXI console.
I can also access any/all of the other VM’s that are running on that server.
There are currently 8 VM’s running, all are working fine except Home Assistant

12

Take a snapshot, shut down the vm. Remove the network card, and add a new network card. See if you can ping that when the vm is back up.

13

What OS/browser do you use? Isn’t it Safari in macOS Tahoe, by chance?
If so try to access your HA either by home http://assistant.local:8123 (do not use IP), or, even better, if you have reverse proxy configured in your network use public URL.

14

Done that.
No change.

What I have noticed is that when I reboot HA, in the CLI I see this

ha-nonet
ha-nonet550×285 3.25 KB

15

I’ve used several, still no change.
Can’t ping it as for some reason, it’s not got an IP address.

Nothing has changed on the barebones machine.

16

I have just deployed a brand new instance without changing any settings and it’s picked up an IP address automatically so this is DEFINITELY something wrong with the original instance.

I really really don’t want to have to go through the whole setup again so I would REALLY like to get the original working.

17

Anyone any ideas please?

18

type

ha net inf
In your console, also be aware that people can’t just keep on guessing
You have to provide structured troubleshooting facts (visible facts, not just your thought or similar)

PS: In Cli you can also find the various log-files
Read the CLI ( i.e , -h )after each commands gives you more info

After above net inf, also check your Router, as a Router is in fact You Home Primary IP Management Device