Hi Remmert,
Currently we are aware that some players might get (random) disconnects and/or are not able to connect to multiplayer at all.
We are having a look into this, but additionally to make sure everything on your end is running fine and properly, always check following beforejumping into the multiplayer-action:

- Check, if you have a stable internet connection. If you are using WiFi, use a wired/cable connection, if possible, to prevent any possible interruptions.
- Make sure you have enough bandwidth available. So disabling all downloads, streams, closing all tabs in your browser is recommended and check if no one else in your household might “steal” bandwidth.
- Check, if Steam and Sudden Strike 4 is not being restricted/blocked by your Anti-Virus program. Simply set exceptions for both applications.
- Check your Firewall/s (Router, Windows Firewall, additional Firewall, e.g. Norton) if exception are set for Steam and Sudden Strike 4 in addition.
- There are no specific ports needed to be enabled manually in your router.
-> Nevertheless if your Router features the option “UPnP”, we would recommend to enable this option, as it simply enables programs, such as Games in general, which are using multiplayer, to open the ports needed on their own, without opening up huge ranges of ports.

-cheers