SL3 Pro: do not disconnect Wifi when Nuki Cloud is unreachable, breaking local MQTT and other protocols

[lukastribus]

Product name

Smart Lock 3.0 Pro

Summary

Nuki SL 3.0 Pro should not disconnect Wifi when Nuki Cloud is unreachable, as this will break local connection (local API, MQTT, etc).

Features

Do not disconnect the Wifi due to unreachable Cloud Servers

Reason

Nuki SL 3.0 Pro is “health checking” the Wifi by connecting to the Nuki Cloud servers. If the Nuki Cloud Servers are not reachable, for example because:

• there is a problem with the local Internet Connection
• there is a problem with the Nuki Cloud
• Internet Access is not allowed for the nuki device (firewalled or airgapped).

More details in the discussion:

Local MQTT connection fails there is no connectivity to Nuki Cloud Servers

Hello, I have a Nuki 3.0 Pro, it connects to a MQTT Server on my local LAN, which is talking to my local Home Assistant. I noticed that Nuki is “health checking” the Wifi Connection by connecting to the Nuki Cloud. If the connection to the Nuki Cloud fails, Nuki 3.0 Pro will disconnect from the Wifi. Of course when Nuki disconnects from the Wifi, MQTT also stops working and my local Home Assistant cannot communicate with Nuki anymore. I’m pretty sure the other local integrations like Homenet…

This is a long solved problem in the Nuki bridge by pinging the default gateway:

Bridge HTTP-API only sporadically reachable when no internet connection is avaiable (firmware 2.4.21)

I also have these problems. When deactivating internet access to the bridge, my bridge disconnect/connect about every 210 seconds. When activating internet access, the problem disappears. Firmware of this bridge is 1.15.1 I’m not happy to let have the bridge internet access… Raimund

Examples

I would like to use the Nuki SL 3.0 Pro with a local MQTT broker and a local Home Asssistant instance, even though:

• my internet is down
• my internet is flapping
• the Nuki Cloud is unreachable for whatever reason not related to my configuration
• my firewall does not allow access to the Nuki Cloud

Thank you for the consideration!

[Juergen (Jürgen Pansy)]

This feature is now available in the latest 3.8.2 beta of Smart Lock 3.0 Pro:

Smart Lock Firmware 3.8.x Beta

Smart Lock 3.0 Updates Smart Lock 3.0 Beta 3.8.0 Bugfixes and stability improvements Smart Lock 3.0 Beta 3.8.1 Bugfixes and stability improvements Smart Lock 3.0 Beta 3.8.2 Improved MQTT API reconnect timeout handling Improved UX for updating MQTT API related settings (password field can be left empty if only settings are changed) MQTT API is now also working if SL3P has no internet connection (local only) Improved WiFi stability Bugfixes and stability improvements Smart Lock 3.0 Beta 3…