Disconnected: Did not receive auth message within 10 seconds - used to work

Configuration
1

Trying to access HA from a different subnet of my pfsense router.
HA is at 172.29.3.4 - Port 3 on pfsense router
PC/iPad/Pixel5 is at 172.29.2.x - Port 2 on pfsense router (tried all sorts of different IP addresses)

I can ping HA from all the devices on 172.29.2.x
And I can ping all these devices from on 172.29.3.4 (HA)

But none of them will connect with their browers.

In HA Logs I see:

Logger: homeassistant.components.websocket_api.http.connection
Source: components/websocket_api/http.py:542
integration: Home Assistant WebSocket API (documentation, issues)
First occurred: 5:13:07 PM (41 occurrences)
Last logged: 5:41:52 PM

[547487577760] from 172.29.2.102 (Home Assistant/2025.5 (io.robbie.HomeAssistant; build:2025.1264; iOS 18.5.0)): Disconnected: Did not receive auth message within 10 seconds
[547496407776] from 172.29.2.102 (Home Assistant/2025.5 (io.robbie.HomeAssistant; build:2025.1264; iOS 18.5.0)): Disconnected: Did not receive auth message within 10 seconds
[547487521248] from 172.29.2.102 (Home Assistant/2025.5 (io.robbie.HomeAssistant; build:2025.1264; iOS 18.5.0)): Disconnected: Did not receive auth message within 10 seconds
[547487511584] from 172.29.2.102 (Home Assistant/2025.5 (io.robbie.HomeAssistant; build:2025.1264; iOS 18.5.0)): Disconnected: Did not receive auth message within 10 seconds
[547487498080] from 172.29.2.102 (Home Assistant/2025.5 (io.robbie.HomeAssistant; build:2025.1264; iOS 18.5.0)): Disconnected: Did not receive auth message within 10 seconds

This just started happening a few days ago. I’ve tried rebooting HA, no joy.
Any ideas on what or where to check or what the cause is?

Thanks!

2

have you tried rebooting the pfsense device?

3

No joy. Rebooted pfsense box and still no connection.
A trace route from the device on 172.29.2.x to HA on 172.29.3.4 results in just 2 hops, as expected: 172.29.2.1 (pfsense) then 172.29.3.4 (HA)

4

Well, something changed. I still cannot connect from 172.29.2.x, but there are no longer any error messages in the Core log. And no errors in any of the other logs. The web page just sits blank tryin to connect to HA

5

Check the logs of you router

6

Thank you!
One step closer. I dug around in the pfsense logs and found these:

image
image1508×727 104 KB

So it appears to NOT be a HA issue, but rather a firewall issue.
I looked at the Rules on both 172.29.2.x and 172.29.3.x and don’t see anything that would block these packets, but then again, I’m still learning.

So I’ll head over to the pfsense forum and dig around there for ideas.

Thanks again for pointing me in the right direction!

7

You have a default deny rule that will catch any packets that have not been catched by other rules.