Check with your provider for SIP server, username and password, and if they have a suggested app (even if you don’t want to use it, it means they have some kind of support). It’s probably in their support pages somewhere.

I found this on the deConz pages - https://github-wiki-see.page/m/dresden-elektronik/deconz-rest-plugin/wiki/LQI-explained

Can you find it in the UI somewhere?

I don’t know deConz but ZHA shows RSSI on the device in home assistant, and you can see RSSI in the Zigbee2MQTT UI list of devices. I’d assume it’s something like that in deConz.

I’d say if the device is closer to the controller then I’d suspect the devices. Do you have any other devices yet or just the Aquara sensors? It’s possible they work better through a Zigbee router too so you can try connecting them via one.

How is the link strength for the devices? Do they still drop off if you leave them right by the controller? If you’re just getting started I’m guessing you don’t have a strong mesh yet with plugged in devices to provide routers to the network.

My experience is that some manufacturers are better at following the spec and devices work better or worse based on that.

Is the reverse proxy using an add on or did you roll your own? Reason I ask is proxing HA needs special treatment for websockets (wss:// or ws:// scheme). Add ons should do it themselves but I had to do it myself with Apache. I’m not sure if there’s special config needed for nginx too.

Did you set up the proxy as a trusted forwarder? That means setting use_x_forwarded_for and trusted_proxies in configuration.yaml?

Silly question but does it still work directly without the proxy (like http://homeassistant.local:8123/ )? Check the logs in system- logs and see if you can find anything relevant. AFAIK the proxy shouldn’t change how calendars get loaded.

I use an acurite 06002RM temperature and humidity sensor with a rtl 433 compatible receiver plugged into home assistant and an rtl2mqtt add on. It’s indoor/outdoor and has worked well for all sorts of weather. Combined with a sun shade and it’s a good solution I think, and completely local.