Multiplayer Server Problem Help PLEASE!!!!!

Put the summary of the bug you're having here

What I expected to happen was...:
Play on Multiplayer servers like everyone else.

What actually happened was...:
Logged onto server. Played for 10 seconds without freezing. Froze but i was still moving. 15 seconds later the server logged me out to a Connection Lost screen. This happens on every server.

Steps to Reproduce:
1. Log onto server
2. Play like you normally would
3. Server stops moving but wait for another window to pop up.
4. This is what the launcher says:

Client> java.net.SocketException: Software caused connection abort: recv failed
Client> at java.net.SocketInputStream.socketRead0(Native Method)
Client> at java.net.SocketInputStream.read(Unknown Source)
Client> at java.net.SocketInputStream.read(Unknown Source)
Client> at java.io.FilterInputStream.read(Unknown Source)
Client> at org.bouncycastle.crypto.io.CipherInputStream.nextChunk(Unknown Source)
Client> at org.bouncycastle.crypto.io.CipherInputStream.read(Unknown Source)
Client> at java.io.DataInputStream.readUnsignedByte(Unknown Source)
Client> at ex.a(SourceFile:178)
Client> at cn.i(SourceFile:249)
Client> at cn.c(SourceFile:17)
Client> at co.run(SourceFile:94)
Client> 2013-07-11 14:45:26 [CLIENT] [INFO] Stopping!

SCREENSHOT IS ATTACHED!!!!