Problem Player's client crashes when joining Direwolf20 Server

[PcInfamy]

I get this error on the server console everytime I try to enter my minecraft server running latest FTB Direwolf20 pack server:

java.io.IOException: Connection reset by peer
at sun.nio.ch.FileDispatcherImpl.read0(Native Method) ~[?:1.7.0_65]
at sun.nio.ch.SocketDispatcher.read(SocketDispatcher.java:39) ~[?:1.7.0_65]
at sun.nio.ch.IOUtil.readIntoNativeBuffer(IOUtil.java:223) ~[?:1.7.0_65]
at sun.nio.ch.IOUtil.read(IOUtil.java:192) ~[?:1.7.0_65]
at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:379) ~[?:1.7.0_65]
at io.netty.buffer.UnpooledUnsafeDirectByteBuf.setBytes(UnpooledUnsafeDirectByteBuf.java:436) ~[UnpooledUnsafeDirectByteBuf.class:?]
at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:870) ~[AbstractByteBuf.class:?]
at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketChannel.java:208) ~[NioSocketChannel.class:?]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:87) [AbstractNioByteChannel$NioByteUnsafe.class:?]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:480) [NioEventLoop.class:?]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:447) [NioEventLoop.class:?]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:341) [NioEventLoop.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) [SingleThreadEventExecutor$2.class:?]
at java.lang.Thread.run(Thread.java:745) [?:1.7.0_65]
[04:30:24] [Server thread/INFO]: PcInfamy lost connection: TranslatableComponent{key='disconnect.genericReason', args=[Internal Exception: java.io.IOException: Connection reset by peer], siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}
[04:30:24] [Server thread/INFO]: PcInfamy left the game​

Other players login just fine

 

[Fyrhtu]

I'm seeing this same issue; deleting my player data on the server *TEMPORARILY*"Fixes" the issue, but I'm hoping someone has a more permanent, and less destructive, solution.
Not sure what logs might help, so -
Pastebin of latest.log: http://pastebin.com/ZYBSbC27
Patebin of prev. "dated" log: http://pastebin.com/XddkZUGa
Pastebin of relevant portion of Server logs: http://pastebin.com/a1Ljd3KM
If there are ANY other logs I can provide that might help, please point me in the right direction, O knowledgeable ones!