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  1. Minecraft: Java Edition
  2. MC-257320

Can't join IPv6-only servers that have 'prevent-proxy-connections=true' set

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • None
    • 1.19.2
    • None
    • Confirmed
    • Networking
    • Normal
    • Platform

      When you try to join a server that is only reachable via IPv6, with the server property prevent-proxy-connections set to true, you get disconnected with the message "Failed to verify username!".

      The server additionally logs:

      [21:06:32 ERROR]: Username 'DerEnderKeks' tried to join with an invalid session
      [21:06:32 INFO]: /[2003:xxxx%0]:60364 lost connection: Failed to verify username!
      

      After setting the property back to false, I can join without restarting the game.

            Unassigned Unassigned
            DerEnderKeks DerEnderKeks
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            3 Vote for this issue
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              Created:
              Updated:
              CHK: