Ring alarm - False alarm

Hi all,

A bit of a strange one.

My Ring alarm has started to false alarm in the afternoon between 3-4pm most days!

I have checked the PIR in question, cleaned it making sure for a spider, dirt etc…

Any ideas on why it is doing this?

Thanks for any advice/help


Any devices that turn on around that time either in your own house or a neighbors?
Once upon a time I had a photovoltaic device that would turn my porch light on/off with the sunrise and sunset. Turns out it would kill my DSL connection when it turned on.
Maybe something is sending/blocking signals that is setting your alarm off.