I tried to download Diablo II and LOD. The downloader app downloads fine but when I got to open it I get an a pop up asking me if I want to save a file named http_404_weboc. I can save the file to my downloads folder and the the app exits. Is there something that I am doing wrong?
Just CANCEL those popups until you get to the one asking for a FOLDER to choose for installation. Allow it to install there and then you should be able to launch the game.
It should automatically patch itself to 1.14d the first time you login. If it doesn’t, you can manually patch it. It’s listed at the very bottom for PC here: