Diablo 2 - Cant connect do Battle.net

Hello. Since I didn’t know Blizzard didn’t allow using softwares to reduce latency, I tried using one because I am from Brazil, and Blizzard doesn’t have a server close by. I have disabled permanently the software and changed my IP address and still can’t connect. What can I do?

(Added this comment on 04/10/2021 here because I also cant reply to my post)
Hello Hudson. Since Blizzard ios obviously NOT responding to this question I have a suggestion. Choose other company’s games to play. One that actually has support.