The AirVisual Pro remembers your WiFi networks so if you find that your Node/Pro is frequently disconnecting, it is likely a problem of using a Wi-Fi repeater or 5GHz connection:
1) Wi-Fi repeater - Using a Wi-Fi repeater for growing the strength of your Wi-Fi across a large distance will cause trouble for your Pro because unlike a computer, the Node/Pro is detecting Wi-Fi by SSID name, and not a Mac Address. As a result, the Pro may be getting lost, switching around between identically named Wi-Fi and repeater based on signal strength.
If you believe this to be the problem, we recommend moving the Pro farther away from the repeater so that there is only one network with a strong signal. This might involve some trial and error. Alternatively, a better option is to change the SSID name of the repeater.
2) 5GHz connection - Two networks with the same name, one with a 5 GHz connection and one with a 2.4 GHz connection, will cause the same problem. In this case, disable or change the SSID name of the 5 GHz - so that your Node/Pro just connects to the 2.4 GHz. Remember that the Pro supports Wi-Fi 802.11 b/g/n 2.4GHz.
3) Wi-Fi networks requiring a username & password - the AirVisual Pro cannot connect to Wi-Fi networks requiring web authentication.