Panasonic HC-WXF1 Operating Instructions Manual page 248

Problem
The Sub Window image is
interrupted.
The Sub Window image
disappears.
≥ Please also refer to "If the Wi-Fi connection cannot be established".
≥ The Sub Window image is interrupted when the Wi-Fi signal
weakens. If the signal weakens further, the Sub Window
image disappears automatically.
≥ Depending on the orientation of this unit and the smartphone
and the distance between them, the image may be
interrupted.
If the image reception is poor, close the distance and check
the connection status icon
also point the Wi-Fi transmitter
- 248 -
Check points
(l 240) at the same time. You can
(l 8) at the smartphone.
(l 218)