My friend keeps getting kicked after about two or three minutes of being on the server.

My friend logs onto the server, and a few minutes later, is disconnected. He gets different error messages each time, but here they are:

'Disconnected by server'

Internal Exception: java.IOException: An established connection was aborted by the software in your host machine

Those are the messages he gets. I have restarted the server, deleted his player data, and even had him log on with a different account. The host thinks it is his internet, but it can't be.

In my console, this error appears:

ranslatableComponent{key='disconnect.genericReason', args=[Internal Exception: java.io.IOException: Connection reset by peer],

No idea what to do.