Partial video

After struggling to capture anything for about three minutes, my camera showed me this outside the cabin of my mountain cabin. Any idea as to what’s the problem?

Looks like loss of wi-fi signal to me

Full streaming was instantaneous and perfect when I viewed it over WiFi while in the cabin, but when I tried it over WiFi from home (90 miles away, but a full three bars of signal on each end), it took at least a full minute of grinding , and then delivered the same partial still image.