No idea where to start

AndyJ67 — Wed, 18 Mar 2026 22:50:18 GMT

So my internet connection has been down for 24+ hours. The EE status says it was supposed to be fixed 4 hours ago. Called and was told "Definitely today".

Anyway, I'm having a very odd problem.

I have a Home Assistant server wired into the router. From my Mac, over WiFi, I can connect to that and control all my devices (ZigBee, not WiFi).

I had a short spell where I could connect to the router on 192.168.1.254

Now I can't. I'm getting 99% packet logs if I ping the router from my Mac and the same if I ping it from my Home Assistant box.

If I ping my Home Assistant box, it's coming back in single figures.

My Mac connects to WiFi fine. My phone says "connection error" if I try to connect to the WiFi. Another phone says the password is incorrect when it absolutely isn't.

All my Tado rad valves say offline. My house battery inverter, which connects over wifi is offline.

Have I got a duff router? Is it coincidence that it died at the same time as the internet outage?

I'm getting more and more annoyed by this and can't see the wood for the trees so any suggestions would be welcome. I've factory reset the router and rebooted it 100 times.

Re: No idea where to start

bobpullen — Thu, 19 Mar 2026 08:35:05 GMT

Quite a complex one and could be a bunch of things I guess. If any of the IoT devices are polling cloud APIs then I could see why they might be showing as offline as there's no Internet connection. I also find smartphones to be particularly fussy when it comes to connecting to WiFi access points where there's no Internet resolution.

Another thought is that Home Assistant can be very 'noisy' when there are outages. My install spams the hell out my network with DNS requests etc. whenever there's a brief outage, or I reboot/swap routers. I wonder if the repeated flurries of network activity from HA are sending the router into a spiral. The fact you can't get into the admin interface after a while would certainly suggest it's not happy with something.

topic No idea where to start in Broadband & Landline

No idea where to start

Re: No idea where to start