If any context is needed. I've played on the server for years. He's a friend of mine from spain, and his provider is Aire, which assigns Non-residential IP's.
- We checked the network and made sure nothing was installed and only his normal ethernet adapter was enabled
- Switched to the x64 chromium version
- The game is a fresh install, first with no addons and later with some perp addons
- We tried flushing the DNS
Planned:
- We can try to pull the router for 5-10min in hope to get a new IP assigned by the ISP.