Closed Port Warning "Hosted" (Non-Dedicated "Co-op") - Help

[calm path]

Ive tried Opening UDP 16262 through the firewall as instructed through an old redit post https://www.reddit.com/r/projectzomboid/comments/xzbait/server_has_port_16262_closed_warning_help/

https://www.tomshardware.com/news/how-to-open-firewall-ports-in-windows-10,36451.html

and my friends are still getting the error

Closed Port Warning "Hosted" (Dedicated) - Help

Closed Port Warning "Hosted" (Non-Dedicated) - Help

[calm path]

Closed Port Warning "Hosted" (Non-Dedicated "Co-op") - Help

[woven hawk]

Steam relay does not "fix" the issue, the port being closed means you are using Steam relay

For coop servers, you just have to open the ports in your firewall + router

You only opened it in the firewall right? You need to do it in your router settings too in that case