Computer used as proxy?

Hi I want to know if anyone knows how does SciFi get access to new paper, does it use my computer as proxy to download new papers? I have been blocked in several webpages due to my computer being used as proxy by Scihub.

Also my internet has been really slow and I wonder if this has any connection with this issue, or if you guys know any way in which I can track how is my internet connection being used and by whom.

Thanks in advance for any reply.