minecraft network protocol error 1.21.1

monwarul islam · Apr 22, 2025 at 2:32 AM

---- Minecraft Network Protocol Error Report ----

// 0xBADF00D

Time: 2025-04-21 20:29:42

Description: Packet handling error

java.lang.IllegalStateException: Failed to load registries due to above errors

at akm.a(SourceFile:181)

at akm.a(SourceFile:155)

at fzs$a.a(SourceFile:49)

at fzs.a(SourceFile:59)

at fzd.a(SourceFile:117)

at fzd.a(SourceFile:109)

at fzd.a(SourceFile:117)

at abd.a(SourceFile:22)

at abd.a(SourceFile:8)

at zj.a(SourceFile:27)

at bph.d(SourceFile:162)

at bpl.d(SourceFile:23)

at bph.B(SourceFile:136)

at bph.bB(SourceFile:121)

at fgo.c(SourceFile:1240)

at fgo.f(SourceFile:882)

at net.minecraft.client.main.Main.main(SourceFile:256)

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

-- Head --

Thread: Render thread

Stacktrace:

at akm.a(SourceFile:181)

at akm.a(SourceFile:155)

at fzs$a.a(SourceFile:49)

at fzs.a(SourceFile:59)

at fzd.a(SourceFile:117)

at fzd.a(SourceFile:109)

-- Incoming Packet --

Details:

Type: clientbound/minecraft:finish_configuration

Is Terminal: true

Is Skippable: false

Stacktrace:

at zj.a(SourceFile:56)

at fzc.a(SourceFile:136)

at fzc.a(SourceFile:113)

at zj.a(SourceFile:32)

at bph.d(SourceFile:162)

at bpl.d(SourceFile:23)

at bph.B(SourceFile:136)

at bph.bB(SourceFile:121)

at fgo.c(SourceFile:1240)

at fgo.f(SourceFile:882)

at net.minecraft.client.main.Main.main(SourceFile:256)

-- Connection --

Details:

Protocol: configuration

Flow: CLIENTBOUND

Server type: OTHER

Server brand: fabric

-- System Details --

Details:

Minecraft Version: 1.21.1

Minecraft Version ID: 1.21.1

Operating System: Windows 11 (amd64) version 10.0

Java Version: 21.0.3, Microsoft

Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft

Memory: 233790544 bytes (222 MiB) / 570425344 bytes (544 MiB) up to 2147483648 bytes (2048 MiB)

CPUs: 12

Processor Vendor: AuthenticAMD

Processor Name: AMD Ryzen 5 4500 6-Core Processor

Identifier: AuthenticAMD Family 23 Model 96 Stepping 1

Microarchitecture: unknown

Frequency (GHz): 3.59

Number of physical packages: 1

Number of physical CPUs: 6

Number of logical CPUs: 12

Graphics card #0 name: NVIDIA GeForce RTX 3050

Graphics card #0 vendor: NVIDIA

Graphics card #0 VRAM (MiB): 6144.00

Graphics card #0 deviceId: VideoController1

Graphics card #0 versionInfo: 32.0.15.6636

Memory slot #0 capacity (MiB): 8192.00

Memory slot #0 clockSpeed (GHz): 3.20

Memory slot #0 type: DDR4

Memory slot #1 capacity (MiB): 8192.00

Memory slot #1 clockSpeed (GHz): 3.20

Memory slot #1 type: DDR4

Virtual memory max (MiB): 17301.46

Virtual memory used (MiB): 14828.56

Swap memory total (MiB): 1024.00

Swap memory used (MiB): 75.49

Space in storage for jna.tmpdir (MiB): available: 772038.06, total: 953065.00

Space in storage for org.lwjgl.system.SharedLibraryExtractPath (MiB): available: 772038.06, total: 953065.00

Space in storage for io.netty.native.workdir (MiB): available: 772038.06, total: 953065.00

Space in storage for java.io.tmpdir (MiB): available: 772038.06, total: 953065.00

Space in storage for workdir (MiB): available: 772038.06, total: 953065.00

JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M

:)

SmartLace1968

Hi there! This is Virginia O.

I understand that you are experiencing issues playing Minecraft.

I apologize for the inconvenienced this has caused you. I will do my best to help you.

Please verify Minecraft installation by launching Minecraft without mods to see if the issue persists. To do this, open Minecraft Launcher. Select the latest vanilla version (no mods). Start the game and check if the error still appears.

And then check internet connection & server compatibility. Make sure that the server version matches Minecraft 1.21.1. Here are the steps, restart your router.

Switch to a different Wi-Fi or mobile Hotspot. If using a VPN, disable it temporarily.

If the issue persist after performing the troubleshooting steps, a clean installation is needed by uninstalling Minecraft Launcher. And then reinstall Minecraft from https://www.minecraft.net/en-us and try launching the game to see if it works.

Thank you for your cooperation.

Alvaro A-

Hi william,

Thank you for posting in Microsoft Xbox Community. I'm sorry to hear that you're having issues when playing Minecraft due to an error. I understand how important this is to you.

I want to make sure that your issue will be resolved the soonest possible time. With this, I recommend that you submit a ticket directly to Minecraft support. In this way, we can be assured that your case will be logged, attended and monitored in a timely manner. Please use this link:

https://help.minecraft.net/hc/en-us/request/new...

Regards,

Alvaro

Jonathan Deives

Hi, my name is , I'm an Independent Consultant and a member of the Xbox community like you.

Check if the error occurs in other versions, as you are trying to use mods, the best thing to do is contact the CurseForge forum where they can help you better.

You can also try contacting Minecraft support;

https://help.minecraft.net/hc/en-us/request/new...

Or use the official discord at the bottom of the page;

https://help.minecraft.net/hc/en-us

SwordofWhedon

You need to contact your Internet provider about problems with your Internet connection

JohnSadler3

, i try to connect my XBOX one by WIFI & get this ERROR: "your security protocol will not work xbox one "Your console supports WPA/WPA2 (personal), WPA2 (personal), and WEP network security protocols, but your router is using something else.
You'll need to change your routers configuration.""

minecraft network protocol error 1.21.1