I'm not sure if this only happens to me.

I have been using Flashget v3.7 on my windows 10 PC, and it works fluently. No issue no hassle.
But lately, after Windows 10 update, it does not work any more. I mean, I can still set up downloading task, but it just does not download any more.
Even a simple file, via a HTTP link, which can be download using browser (chrome), also does not work with Flashget.

Is this because the latest windows 10 update close certain port, or did anything ?

Any clue is very appreciated.