The receiver's location is very good and the receiver is getting some overload from a couple of high powered shortwave broadcasters in the 41 meter band (7300-7300 kHz). This will cause distortion across the whole 0-32 MHz spectrum when the signal gets to 60 dB over S9. A 20 dB attenuator has inserted as a brute force workaround. A better solution will be coming soon.
For your wintertime listening pleasure, the session timeouts and maximum daily times have been increased. On receivers 1, 2, and 3 there is a 3 hour per session timeout and a 10 hour per day maximum per person. On receiver 4 there is a 6 hours per session timeout and a 18 hour per day maximum per person. Timeouts are instituted to make sure that inactive sessions don't tie up a receiver and prevent others from using it. If your session times out you can reconnect up to the daily maximum. https://n1nte.blogspot.com/p/online-kiwisdr-receivers.html