For the most stable experience ensure that your Lemus unit is configured to your 2.4GHz Wi-Fi band.
The 5GHz. band is fast but has a lower reach and is generally more unstable when engaging with smart home products.
To check the configuration log into your routers settings page and find a tap listing connected devices and their connecting type which will indicate what band is used.

Distribution from other nearby Wi-Fi routers may cause interruption resulting in connecting dropouts.
To check if your Wi-Fi channel is overloaded or simply that the Wi-Fi is barely reaching the Lemus unit one can make use of apps such as "WiFi analyzer"
Place the device with the Wi-Fi analyzer app on top of your Lemus unit and run a session to get an insight in the state of the Wi-Fi your Lemus unit is catching.