MrTargren

Vivaldi is Chromium-based too. It was a homebrew userscript I'd written in TamperMonkey, and forgotten all about. No one will have the same problem.

This was the issue, or rather led me to the issue. Trying it on Firefox worked, which led me to some digging, and an extension breaking the links locally. Thank you.

Vivaldi

Clicking on "Mod Manager Download" on NexusMods. I can do "Manual Download" through the browser fine. It looks like vortex is either making bad API endpoint connections, which is weird for the latest version, or there's something odd about my account that it's not allowed to download them (403 is "forbidden"). Unless it's DNS. ("It's always DNS^TM")

No, nothing like that at all.

1 and 2 haven't. I'll give 3 a try. Update: Nope. Uninstalled and reinstalled, and still getting the same thing.

Whoops. I forgot that. I updated to the latest when I was prompted, so it's 1.13.7. I've edited that into OP

Vortex 1.13.7 I've tried mods from Bloodstained, Torchlight II, and Kingdom Come: Deliverance, and they all seem to be giving me the same 403 error (see attached image). The client seems to be logging in fine, it's just the downloads failing when I hit the "Mod Manager Download" button (so the hint about "expired link" doesn't make much sense)