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Hi I followed the read this first but MC is crashing. Always worked up till 1.9.2 Here's the report. There used to be a MC help chat but it's not there anymore. Does anybody know what happened to it? Please help.

---- Minecraft Crash Report ----
// On the bright side, I bought you a teddy bear!

Time: 4/1/16 4:22 PM
Description: Updating screen events

java.lang.IllegalStateException: failed to create a child event loop
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:68)
at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52)
at ma$1.a(SourceFile:61)
at ma$1.b(SourceFile:58)
at oj.c(SourceFile:10)
at ma.a(SourceFile:138)
at bcc.a(SourceFile:2135)
at bhh.a(SourceFile:212)
at bey.a(SourceFile:341)
at bhh.a(SourceFile:352)
at bey.k(SourceFile:404)
at bey.p(SourceFile:381)
at bcc.t(SourceFile:1575)
at bcc.av(SourceFile:962)
at bcc.a(SourceFile:392)
at net.minecraft.client.main.Main.main(SourceFile:124)
Caused by: io.netty.channel.ChannelException: failed to open a new selector
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:128)
at io.netty.channel.nio.NioEventLoop.<init>(NioEventLoop.java:120)
at io.netty.channel.nio.NioEventLoopGroup.newChild(NioEventLoopGroup.java:87)
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:64)
... 17 more
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.<init>(Unknown Source)
at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source)
at java.nio.channels.Pipe.open(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl.<init>(Unknown Source)
at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source)
at io.netty.channel.nio.NioEventLoop.openSelector(NioEventLoop.java:126)
... 20 more
Caused by: java.net.SocketException: Invalid argument: connect
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.Net.connect(Unknown Source)
at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
at java.nio.channels.SocketChannel.open(Unknown Source)
at sun.nio.ch.PipeImpl$Initializer$LoopbackConnector.run(Unknown Source)
... 29 more

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

-- Head --
Stacktrace:
at io.netty.util.concurrent.MultithreadEventExecutorGroup.<init>(MultithreadEventExecutorGroup.java:68)
at io.netty.channel.MultithreadEventLoopGroup.<init>(MultithreadEventLoopGroup.java:49)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:61)
at io.netty.channel.nio.NioEventLoopGroup.<init>(NioEventLoopGroup.java:52)
at ma$1.a(SourceFile:61)
at ma$1.b(SourceFile:58)
at oj.c(SourceFile:10)
at ma.a(SourceFile:138)
at bcc.a(SourceFile:2135)
at bhh.a(SourceFile:212)
at bey.a(SourceFile:341)
at bhh.a(SourceFile:352)
at bey.k(SourceFile:404)
at bey.p(SourceFile:381)

-- Affected screen --
Details:
Screen name: bew
Stacktrace:
at bcc.t(SourceFile:1575)
at bcc.av(SourceFile:962)
at bcc.a(SourceFile:392)
at net.minecraft.client.main.Main.main(SourceFile:124)

-- System Details --
Details:
Minecraft Version: 1.9.2
Operating System: Windows 7 (amd64) version 6.1
Java Version: 1.8.0_77, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 118941960 bytes (113 MB) / 292409344 bytes (278 MB) up to 4281597952 bytes (4083 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Launched Version: 1.9.2
LWJGL: 2.9.4
OpenGL: GeForce GT 555M/PCIe/SSE2 GL version 4.5.0 NVIDIA 364.72, NVIDIA Corporation
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Resource Packs:
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i5-2430M CPU @ 2.40GHz

Try adding "-Djava.net.preferIPv4Stack=true" to your JVM arguments.

AVG but I think I uninstalled it.

Quote from gerbil»

Try adding "-Djava.net.preferIPv4Stack=true" to your JVM arguments.

Open the launcher, select the profile you want to use.

Hit Edit Profile.

Near the bottom is a checkbox and text entry box labelled JVM Arguments.

Check the box, add the string -Djava.net.preferIPv4Stack=true at the end of the box, with a space before and after it, but no spaces in what you type in

Hit save

Then Play

I had the same problem. The only thing that fixed it was removing all minecraft files from my computer and reinstalling.

Quote from Atomic_Unicorn»

I had the same problem. The only thing that fixed it was removing all minecraft files from my computer and reinstalling.