L2JMobius
Free Users => General Discussion => Topic started by: ban on December 12, 2020, 07:33:20 PM
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Client: [IP: ***.***.***.**] - Failed reading: [C] ProtocolVersion ; null java.nio.BufferUnderflowException
does this happen, when players enter with the wrong Patch?
https://pastebin.com/NWhJukNU
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They are using the wrong client. You can specify your allowed protocol versions inside your configs.