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Client fails to connect to server [Netty Server IO #4/ERROR]

Nirality
in Support & Bug Reports

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I put together a modpack for my friends and I to use. The client freezes when you try to connect to the server and the server gives an error: [Netty Server IO #4/ERROR] [FML]: NetworkDispatcher exception. I have tried adding RandomPatches and inserting the JVM Arg.: -Dfml.readTimeout=90. The client log is here. Does anyone know how to fix this? Thanks in advance for any help.

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