Re: Two Players on Same Router Get Soft Crashes when Playing Multiplayer Together
Playing the same game from behind the same router can be tricky. Which Router do you use? Or more specifically, which NAT Type is set in your router? Try to set it to "Full Cone" (if your Router/firmware supports it - there are some that don't) and see if that helps. Check out this link for more information.
If it still doesn't work, then check if you're behind a single router with NAT enabled or a chain of multiple routers with NAT enabled? If it's the latter, try to connect directly to the one that's first in the chain and see if that helps or if that isn't possible, try to set them all to compatible NAT Types.
You could also try different UPNP settings of your router, but setting the correct NAT Type should usually suffice.
That said, be aware that these suggestions may have network security implications.