Player kicked, but client does not detect that.

[Kaloyan501]

OS: Arch Linux 64-bit, latest kernel
Forge Version: 47.3.7
Proxy-Compatible-Forge version: Latest

Forge server says com.mojang.authlib.GameProfile@13d3f26[id=!UUID!,name=!My Username!,properties={},legacy=false] (!IP!) lost connection: Disconnected

Stuff in !! is not what it's actually printing, I'm just redacting IP's and stuff.

[p0t4t0sandwich]

Are you using Ambassador on your Velocity proxy?
What are the full logs on the Forge server/proxy/Forge client? (Use MCLogs to share the logs, as they redact IPs and other sensitive info. Player names/UUIDs are public knowledge and don't really need to be redacted)

[CREW8]

Hello together,

I have the same error with my AllTheMods10 Server. I get the same Error Message on my ATm10 NeoForge Server as @Kaloyan501 states in his message above.

Forge server says com.mojang.authlib.GameProfile@13d3f26[id=!UUID!,name=!My Username!,properties={},legacy=false] (!IP!) lost connection: Disconnected

Additionally i get this error log in my Velocity Console:

[22:59:03 ERROR]: [server connection] PlayerXYZ -> atm10: exception encountered in com.velocitypowered.proxy.connection.backend.ConfigSessionHandler@7a3cb38
io.netty.handler.codec.CorruptedFrameException: Error decoding class com.velocitypowered.proxy.protocol.packet.config.KnownPacksPacket Direction CLIENTBOUND Protocol 1.21 State CONFIG ID e
	at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.handleDecodeFailure(MinecraftDecoder.java:130) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.tryDecode(MinecraftDecoder.java:85) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at com.velocitypowered.proxy.protocol.netty.MinecraftDecoder.channelRead(MinecraftDecoder.java:60) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:289) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:442) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:346) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:318) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:444) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:412) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1357) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:440) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:420) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:868) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.epoll.AbstractEpollStreamChannel$EpollStreamUnsafe.epollInReady(AbstractEpollStreamChannel.java:799) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:501) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:399) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]
Caused by: com.velocitypowered.proxy.util.except.QuietDecoderException: too many known packs
[22:59:03 INFO]: [server connection] PlayerXYZ -> atm10 has disconnected
[22:59:03 ERROR]: [connected player] PlayerXYZ (/88.888.888.88:88888): unable to connect to server atm10
java.io.IOException: Unexpectedly disconnected from remote server
	at com.velocitypowered.proxy.connection.backend.ConfigSessionHandler.disconnected(ConfigSessionHandler.java:335) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at com.velocitypowered.proxy.connection.MinecraftConnection.channelInactive(MinecraftConnection.java:126) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:303) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:281) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:274) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at com.velocitypowered.proxy.protocol.netty.PlayPacketQueueOutboundHandler.channelInactive(PlayPacketQueueOutboundHandler.java:79) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:303) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:281) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:274) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at com.velocitypowered.proxy.protocol.netty.PlayPacketQueueInboundHandler.channelInactive(PlayPacketQueueInboundHandler.java:75) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:303) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:281) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:274) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.ChannelInboundHandlerAdapter.channelInactive(ChannelInboundHandlerAdapter.java:81) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.handler.timeout.IdleStateHandler.channelInactive(IdleStateHandler.java:280) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:303) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:281) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:274) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInputClosed(ByteToMessageDecoder.java:412) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.handler.codec.ByteToMessageDecoder.channelInactive(ByteToMessageDecoder.java:377) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:303) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:281) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.fireChannelInactive(AbstractChannelHandlerContext.java:274) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelInactive(DefaultChannelPipeline.java:1352) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:301) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelInactive(AbstractChannelHandlerContext.java:281) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.DefaultChannelPipeline.fireChannelInactive(DefaultChannelPipeline.java:850) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.AbstractChannel$AbstractUnsafe$7.run(AbstractChannel.java:811) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.concurrent.AbstractEventExecutor.runTask(AbstractEventExecutor.java:173) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:166) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:405) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[velocity.jar:3.4.0-SNAPSHOT (git-cefa3b27-b450)]
	at java.base/java.lang.Thread.run(Thread.java:1583) [?:?]
[22:59:03 INFO]: [connected player] PlayerXYZ (/88.888.888.88:88888) has disconnected: Unable to connect you to atm10. Please try again later.

[p0t4t0sandwich]

Add the -Dvelocity.max-known-packs=264 startup arg to Velocity, replacing the number with roughly the number-of-modsx1.5 to make sure the number is bumped high enough

Hard to tell if it's the same error, since the original user never provided any info

[CREW8]

Thank you for the fast reply! This worked and solved the issue!

[p0t4t0sandwich]

Closed, as there hasn't been any word from the OP, and the error they provided matches the "too many packs" logging behavior

[Kaloyan501]

@p0t4t0sandwich Hello, sorry for bumping this issue and not replying. I am using ambassador on my velocity proxy, I will try the fix you have to @CREW8 and see if it fixes things.

[Kaloyan501]

I was using the latest version of Ambassador on my Velocity proxy at the time, will try this fix and if it doesn't work, I will provide the full logs from the proxy, forge client and server.

[Kaloyan501]

Ok, the issue did not get fixed when I added the argument. My current args are: java -Xms512M -Xmx512M -Dvelocity.max-known-packs=310 -jar velocity-3.4.0-SNAPSHOT-459.jar nogui for the Velocity Proxy.

[Kaloyan501]

Here are the Velocity proxy log: https://mclo.gs/K2Iy1W0
Here are the Paper server logs: https://mclo.gs/NQQbSaw (Connection to it is successful)
Here are the Forge server logs: https://mclo.gs/JZBNBj5
What I have checked:

• Latest version of Ambassador is installed on the Velocity proxy.
• Latest version of PCF is installed on the forge server.
• Forwarding secret matches one from Velocity proxy.
• Online-mode on the Forge server is set to false
• Here is my PCF-common with the key redacted
  #Modern Forwarding Settings
  [modernForwarding]
  forwardingSecret = ""

[commandWrapping]
#List of argument types that are not vanilla but are integrated into the server (found in the Vanilla registry)
moddedArgumentTypes = ["livingthings:sampler_types"]

• Port on Velocity Proxy matches actual server port

[Kaloyan501]

@p0t4t0sandwich Please reopen issue.

[Kaloyan501]

I don't know if this is relevant info, but all my servers are managed under Crafty Controller, which connect to the server port to get stuff like is the server online, its motd, etc.

[Kaloyan501]

I also have 2 questions. First, does it matter in what order I starts the proxy and 2 servers, second is it a problem to place a larger value to -Dvelocity.max-known-packs because I multiplied the amount of mods by 1.8, not 1.5

[Kaloyan501]

Do I need to count the mods that are shown in places like the CurseForge client or the amount that is listed on the mods screen in minecraft?

[Kaloyan501]

Also, I am using Forge version 47.3.7, will try to update later and post if anything different happens.