Minecraft

"Internal Exception / Connection reset by peer" when joining — how do I fix it?

"Internal Exception: Connection reset by peer" is a generic network error that usually means the connection was interrupted or the server hiccuped mid-join. It's rarely fatal and often clears with a restart.

What it means

The message tells you the link between client and server dropped unexpectedly. That can be a momentary server hiccup, a mod or plugin problem, corrupted player data, or the player's own network.

How to fix it

  1. Restart the server from the Console and rejoin.
  2. Check the Console for an error printed at the moment you were dropped — often a mod/plugin or corrupted player data.
  3. Make sure your client version matches the server exactly.
  4. If it only happens for some players, it can be their network or ISP.

Tip: If it started right after adding a mod or plugin, remove that one and test — a bad addition is a frequent trigger.

Frequently asked questions

It keeps happening only to one player. That leans toward their network/ISP or a corrupted player file for their account; have them try another network.

The Console shows nothing at the drop. Restart once more and watch closely — transient resets sometimes don't log, and a clean restart clears them.