Q: My Smart Lock (3.0 / 4th Generation) is having issues with the stability of the WiFi / MQTT connection - What can I do?
Most WIFi and MQTT related problems origin from the power saving that the Nuki Smart Locks have to apply and use in order to achieve a certain lifetime based on the 4xAA batteries while being fully connected and online.
Therefore, most of the issues do not rely only on the Nuki Smart Lock but also on the given network infrastructure and settings. To check if generally a stable connection is possible we suggest to adapt the WiFi power saving of the Nuki Smart Lock and observe the stability.
With the recent firmware you can change the aggressiveness of the WiFi power saving by setting Smart Lock > Settings > Features & Configuration > Battery > Energy-saving mode to “FAST”. This will deactivate all power saving options and should provide you the best possible user experience while also draining the most power from the batteries.
If this works out nicely, you can then set the Energy-saving mode to “MEDIUM” to get the stability and power drain more into balance.