Just to clarify, it used to work but does not anymore?
Do you know if you are behind a CGNAT? See https://superuser.com/questions/713422/how-would-i-test-to-see-if-im-behind-carrier-grade-or-regular-nat
There used to be some issues with CGNAT, I don’t know if they are resolved (I.e the host should not be behind CGNAT).
@FatsharkJulia Normally handles Tech Support. Hopefully she has some suggestions.
Do you both have the same NAT type and are you able to join lobbies together if you all have a third and you all join in on them?
Unfortunately we’re not able to analyse networking issues that occur externally on consoles (it’s incredibly complicated). This means, unfortunately, we can’t look ‘behind the scenes’ in your case to see why this is occurring. I do suspect this is more of a local issue as it’s come on so suddenly without the introduction of a new patch or any backend changes. At least on PC, the CONNECTION TIMEOUT error is often router-related - could you perhaps hook your console up to a mobile data connection to see if the issue persists? (Not a solution, but part of the debugging process)
It’s been so long since I’ve used a console… but back in my CoD4 days, I think I had to port forward my router to get NAT type Open. Not sure if that’s still a thing. Otherwise I’d always be set to moderate or closed. And it made it super hard to find lobbies.
Edit, just Googled. Apparently all you have to do is this,
Just follow these steps:
Maybe I was remembering port forwarding from hosting Minecraft servers or something.
devtrackers.gg