Why does Minecraft say Internal Exception: io.nettty.handler?
I try to go on a multiplayer server and it says
Internal Exception: io.netty.handler.codec.DecoderException:
java.lang.IndexOutOfBoundsException: readerIndex (9) + length (1) exceeds
writerIndex (9): UnpooledHeapByteBuf (ridx: 9, width: 9, cap: 9)
I use the latest update for all the servers I go on, 1.8.7 and I can go on other servers just fine. I was on the server and randomly it kicked me out saying that and I can't get back on.
Best Answer
I figured it out. I couldn't get on because I was logged into Minechat.
If you're logged into Minechat you need to make sure you disconnect before exiting out of the app, Otherwise Minecraft will think you're still logged into the server.
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How do you fix an internal exception in Minecraft?
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Minecraft Internal Exception error is usually a bug or a glitch that can easily be fixed with some solutions. It can also be caused by a poor Internet Connection. If you are using a Mobile Hotspot or some other mode of connection with slow Internet, then the chances are you are not going to connect to the server.ATERNOS io.netty.handler.DecoderException: java.lang.IndexOutOfBoundsException: Index: 25, Size: 5
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