Unsupported Packet Version

[Haki]

Hello, my server is already up and running. Got around 200-300 average online players, but this happened to me once a while ago and I think this might cause problems in the future.

What happened is this happened for a short amount of time, players who logged out had a hard time logging in back, some got dc'ed. After like 10-15 minutes server is fine again and is not showing this warnings anymore.

Map Server didn't crash but I think this might lead to map-server crash. I also have memory leaks when I close the map-server but I suppose this is the only one I'm concerned right now.

What should I do to fix this?

Note: When this occured, there are still 200+ players online. After 15 minutes, players can log back in again. I asked the host provider if we're experiencing ddos and no, traffic is low and normal

Edited May 21, 2020 by Haki

[Patskie]

If you have players already connected to the game then probably above warning goes in because people are trying to connect on your server with a different client (not the one you provided from the downloads).