[Solved] Getting "Lost Connection" when I press the [Duel] button on the start screen

[SuperJedi224]

Whenever I press the [Duel] button on the start screen after logging in, I consistently get a "Lost Connection" error. I suspect that this is probably due to a problem with my router's configuration, but I'm not certain. What ports do I need to have open to connect properly?

PS: I tried using the cf_websocket link as was suggested in a related topic, but still got the same error.

[the flaming storm]

did this happen after some hours later too? because sometimes db update and is being closed to pubblic so it makes dc everyone who try to log in on that period

[SuperJedi224]

It's been happening for a while actually, whenever I try connecting from my home WiFi network anyway.

Edit: OK, reenabling port 8443 seems to have fixed it.