I felt this was important enough to post, as i made a change to my PC earlier which somehow resulted in the corruption of my discord files. When attempting to login, the app would loop continuously and never fully connect. I spent a good hour-ish looking through other peoples' repair vids and forum threads and no one had really put together the answer in one page, although the full answer was scattered through multiple pages.
This solution is for windows-users only.
1. start button (aka windows button) + R = search for %appdata% and then delete the discord folder within the %appdata% folder
2. start button + R = now search for %localappdata% and then delete that discord folder as well.
3. start button to search the keyword "discord" and delete any extra results that might appear.
4. make sure (although at this point they shouldnt be there) that any discord process/applications are terminated/ended.
5. delete/reinstall discord
this was the only thing that worked for me. hope it helps anyone who might be having the issue.
Edited by Fuuton, 20 September 2018 - 08:34 AM.