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Anyone know how to fix it? i tried to play with my friend who live close and its always said high latency and we cannot play together on battlenet any idea? thx
Did you forward ports 6112-6119?
Hello averyone.
Me too with latency problem. I've opened 6112-6119 TCP/UDP
i've opened 6112-6119 TCP/UDP too and still got latency problem too..
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that latency error usually means the host or creator of the game does not have ports open or is firewalled, they can create games but people can't join.

so for the host, you need to forward ports on your router, and do not disable Windows Firewall, instead manually allow Diablo.exe (browse to the GOG \Diablo folder), and tick domain, private, public.

then go to advanced settings, and 'Allow Edge Traversal', allow any in protocol type. if unclear, see pictures here: https://www.tapatalk.com/groups/freshmeatbutchery/portforwarding-guide-old-tristram-forums-t10.html

had the same issues and that was what did it for me. note that if i check if my port 6112/6119 is open on whatismyip portscanner it still says it is closed, since i am behind ISP NAT and using private IP instead of public IP.

also this post might help: https://www.gog.com/forum/diablo/multiplayer_upd_6112_cant_play_help/post18

particularly the part about private network profile, or closing other Blizzard apps. hope it helps.
Post edited March 23, 2019 by svfn
avatar
svfn: that latency error usually means the host or creator of the game does not have ports open or is firewalled, they can create games but people can't join.

so for the host, you need to forward ports on your router, and do not disable Windows Firewall, instead manually allow Diablo.exe (browse to the GOG \Diablo folder), and tick domain, private, public.

then go to advanced settings, and 'Allow Edge Traversal', allow any in protocol type. if unclear, see pictures here: https://www.tapatalk.com/groups/freshmeatbutchery/portforwarding-guide-old-tristram-forums-t10.html

had the same issues and that was what did it for me. note that if i check if my port 6112/6119 is open on whatismyip portscanner it still says it is closed, since i am behind ISP NAT and using private IP instead of public IP.

also this post might help: https://www.gog.com/forum/diablo/multiplayer_upd_6112_cant_play_help/post18

particularly the part about private network profile, or closing other Blizzard apps. hope it helps.
Thaanks bro ! people can join my room, but i canot join the others players