The other day my WiFi network went down and with it, I lost access to my Zigbee network?* Is this normal or is this a sign of a massive issue?
*When I checked the Raspberry Pi running Home Assistant, all devices showed as unavailable.
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How is your coordinator linked to your home assistant?
For example if you use Zigbee2MQTT and you have either Zigbee2MQTT or Homeassistant pointing to the internal ip of mosquito (192.168.1.11 for example) and your router goes down (with dhcp), it’s possible it cannot communicate anymore.
This isn’t the case if it’s all running on the same box using localhost as address, running it in a docker network or when you run ZHA however.
Ding ding, here’s the winner I’d bet
I had something similar (although probably unrelated) happen last week. All of a sudden my router went offline and nothing was getting an internet connection. Sonoff coordinator lost connection with all zigbee devices went unavailable at the same time. Tried rebooting my home assistant pc, router, unplugging sonoff antenna, switching Ethernet ports, etc without luck.
Power cycling my Ethernet switches fixed it immediately. No idea why that did the trick. This has never happened before. I’m on Verizon fios if that matters.
Posting here in case it helps someone identify a common thread/root cause for OP and me, because I thought it was bizarre that an Ethernet switch would ever need to be power cycled!
Your wifi went down or your internet connection?
Sounds like from your comments that you mean internet.
Zigbee does not rely on internet, but does rely on a local connection to your mqtt server which may be on another machine (ideally not), and if these machines are connected via wifi (ideally not) and your wifi went down, then yes you can lose functionality.
Why did your wifi went down ?
Some wifi and zigbee are on the same wavelength, if someone was jamming it (this is illegal), both can be taken down like this.There was a fault in the neighbourhood and Virgin make it so when their routers lose connection to the web, they kill all connections. It’s annoying!
Like, if a neighbor’s Internet loses connection, yours goes down?
So if my internet goes down because there’s an area fault, I can’t, for example, scream movies from my NAS, because the router just refuses all connections. It’s infuriating. Especially as the local Internet drops constantly due Virgin selling over capacity.
Is it worth it to double-NAT, and run a router between your internal network and their internet box? Then your router is doing the internal routing and possibly DNS too. It’s not perfect, but it might be worth it if the internet drops that much.
This is my plan. I’m gonna get a NanoPi to do the routing.
