Hi there, after update from iOS26.3 to beta 26.4 beta 1 I do have connection issue on my local network. Most of the time I do see message that I am disconnected. When I use the browser to connect using local IP i do not have an issue. Same if I use iPad with iOS26.3.
I have also managed to get connected once using HA app but after I switched to the other app and back it disconnects again
HA 2026.2.1
Have you reported the bug to Apple?
https://www.reddit.com/r/homeassistant/s/HP8pAjVZNs
Got exactly the same problem here on iOS 26.4 beta 1, and iPadOS 26.4 beta 1. Accessing the local server URL via Safari on the same device works every time. Doing it via the Companion app works once (deleted and re-added the app incase that was the issue) but doesn’t work again
+1 for this issue also. Can’t see anything in logs - no unauthenticated access attempts for example.
Turning local WiFi off correctly forces companion app to revert to cloud connection which works fine, then re-enabling WiFi restores local connection.
Until it stops working again on the next app launch…
Home Assistant Green
Core 2026.2.2
Supervisor 2026.02.2
OS 17.1
Frontend 20260128.6
iOS 26.4 Public beta 1 (23E5207q)
+1 for this issue.
Works well in cellular mode, broken in wifi
Same here, using URL and browser for now.
I’m experiencing the same problem.
I installed the testflight version… with the same non working result.
All is working fine if I use my external url that goes through cloudflared tunnel and app mapped with https on cloudflare dns.
Temporary work around until the issue is fixed is to delete your HA IP in the Internal Address field so it forces Nabu Casa cloud connection if you subscribe to Nabu Casa
Yes that’s the only solution. I have the same problem on iOS26.3.
Another +1. Also having this issue. Access from the Browser is fine. If I turn off wifi I’m able to connect via Nabu Casa connection. If I switch back to the local network it works for a bit, but then disconnects again.
I deleted the SSID from the server page and it works again like normal.
This means you’re using your external URL instead.
+1 for this issue. Hopefully HA or Apple release a fix soon
Just updated to beta 2. Same issue. 
Sane issue on my iPhone since last beta update to 26.4
Same issue on 26.4 
From what I can see across other forums and the fact that a number of other web access apps I have exhibit the same connection issues, this is a iOS 26.4 beta bug from Apple’s side. It’s not a HA companion app bug.
Interestingly it also affects MacOS 26.4 beta in a similar way so they must be playing about with WiFi networking things across platforms.
I have this issue too. iOS 26.4 Beta 2.
+1 on this issue. While at home on home network, I have to turn off Wifi for the app to work.
+1 I have 26.4 Beta and same issue. I have found a partial workaround. With 2 servers setup (same server IP with different User ID) I switch between them after failed connection then it connects