My friend is falling through world on multiplayer server and then disconnecting.

[TannerM]

We started a minecraft server and have downloaded some mods. We all have the same mods and 2 of us have no problems while the other is falling through world and then getting disconnected with this error. Internal exception: java.met.socketexception: Connection Reset

[Luis_ST]

Your friend should make sure his internet connection is working properly.

Please post debug.log from the server and the disconnecting client.