@opedara Hello leocg. Thank you for giving the explanation, why the defender warning pops up again and again! It's great to have people assist us users here.
Maybe you could even help clarify the mystery entirely for us; Which Opera- feature is demanding the connection that windows defender ist blocking at all / in general / in the first place?
I would like to disable this feature, I think.
It is not the basic internet browsing, as this keeps on working after declining.
You wrote: "What triggers that dialog at first place, I don't know."
Who does know this? Can you point him at this discussion here, perhaps?