Keith Briscoe Posted February 16 Share Posted February 16 Hi! I'm hoping to "start a server" / host for some small group co-op. I've done the port forwarding for my router: used 10308 in both tcp and udp. I've added the inbound and outbound rules in Windows Defender Firewall. Friend still sees "server offline" when trying to join. Any tips / tricks / things to check that I may have overlooked? Thank you. Link to comment Share on other sites More sharing options...
Insonia Posted February 16 Share Posted February 16 (edited) Make sure your friend and server are on the same version. Mismatching game versions can result in "server offline" errors. Let's assume you've completed every step correctly. then Please verify that your router's WAN IPv4 is public address. public IPv4 address is required for hosting server via IPv4. Carrier-grade NAT or any upfront NAT is unable to host any server. If you don't have a usable IPv4 address but do have IPv6, make sure your machine and clients (friends) have IPv6 enabled and working properly.( Remember creating an IPv6 firewall rule at your router to allow 10308 traffic to your server. Port forwarding is not needed for IPv6.) Edited February 16 by Insonia 1 Link to comment Share on other sites More sharing options...
Keith Briscoe Posted February 16 Author Share Posted February 16 going to check this stuff now thx Link to comment Share on other sites More sharing options...
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