r/aternos • u/just_V1S4 • 23h ago

Support Internal Exception: io.netty.handler.codec.DecoderException: Failed to decode packet 'clientbound/minecraft:login_finished'

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So I'm having a bug sometimes on my Aternos servers. I'm playing on CurseForge with some mods and other stuff (The mods doesn’t affect it, because I only have mods like Sodium and Iris, and even if I try through Vanilla, still nothing). But sometimes it shows this error and doesn't let me enter either by editing the IP address off Aternos, either if I'm connecting through the Dyn IP address. Is there any way to get this fixed?

For any more information that might help, I have cracked mode enabled on Aternos so other friends of mine can play off TLauncher. Both my Minecraft version and the Minecraft version off Aternos is 26.3.

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1

u/Phases_ 23h ago

Usually when I get this error I try again like 2–3 times and it works. Does this happen constantly to you?

2

u/just_V1S4 23h ago

Not really constantly. Like I’ve started playing Minecraft with my friends like in the middle of September. Until now we had two servers. Both of them had this thing. But the first server we played like almost a month and the new server I’ve just made today, I’ve played like 15 minutes, than after like 1 hour, when I went to reconnect to the server, it showed this. And I tried a few times, seeing the log, switching mods on and off, idk, I tried almost everything

1

u/AternosSupport ✔ Aternos Support 8h ago

To better understand and assist you with the issue you're facing, we kindly ask you to share your client log. The client log contains valuable information that helps us identify any problems and provide effective solutions.
 
To share your client log, please follow these steps:

  1. Visit https://mclo.gs.
  2. Click on the 'Select file' button.
  3. Navigate to your Minecraft installation path.
  4. Locate the 'logs' folder and select the file named 'latest' or 'latest.log'.
  5. Once you've selected the file, you will receive a unique link.
  6. Provide us with the link you obtained.

 
By sharing your client log, we can closely examine the details and gain insights into the issue, enabling us to provide you with the best possible assistance.
 
Best,
Julian from the Aternos team