Any update on this? This no longer happens when the other player is driving so the driving is smooth but the movement is still not.

This is also solved by port forwarding!

As it turns out i just needed to port forward it works now thank you!

So i tried the dedicated server. And only my local machines could join when i left the bind ip blank. When i changed it to my public IP once again no one could join. So for me both the listen and dedicated server is not working. I don't know if this is relevant but with the person i was testing with we can host and join our arma 3 games just fine so i assume its not anything to do with our network situation. The problem is exclusive to reforger. Let me know if i can provide anything else thank you!

Yeah the devs replied to me on discord and said it was an issue on there side and that there working on it.

I'm also on windows 11 but that wasn't an option if that's useful. Thanks!