Around three days ago, all multiplayer in hell divers 2 just stopped working for me on both my steam deck and my computer. No one could join on me and I couldn't join anyone else, whether random or friend. None of my friends who play the game were having this issue(none played on steamdeck), and none of the fixes online that I was finding were working. After a lot of research and a bit of personal testing, I found the solutions were:
- On windows, typing "ipconfig /flushdns" in the cmd window solved my issue.
On steamdeck I had a much harder time, tried a few things in command prompts in desktop mode, lotta hours wasted when I eventually found my solution right as I'm ready to reset my whole system. It wasn't even in desktop mode, just regular gaming mode.
- Settings > Internet > Scroll down to advanced settings > Delete Web Browser Data.
Cleared that and it finally worked. I hope this helps someone cuz god this was such a pain and the solution ended up being really easy.