I am talking about Anki Web. I need to use this specific laptop most of the time so I was hoping to somehow have it resolved. It is very strange as every other device has not had an issue logging in.
Since you’ve already tried other browsers, clearing the cache (and I assume cookies too?), and incognito …
Next I would look at your internet connection – both within that computer and on the network connection hardware you’re using – antivirus, firewall, VPN, proxy – anything that could be blocking the easy flow of traffic.