Friend has packet loss/lag spikes on server

[kikiotsuka]

The server is hosted in digital ocean, and I can connect to it just fine with minimal lag. However, when my friend connects, often times such as when fighting a lot of biters, he starts getting extreme lag spikes and it becomes unplayable for him. The logs the server spews shows

Code: Select all

<time> Info UnparsedNetworkMessage.cpp:87: Invalid packet (type RequestForHeartbeatWhenDisconnecting) received from <friend IP>: unknown sender

This happened 159 times in a giant block.

The attached file is my friend's log files.

[AlienX]

Just some questions I assume will be asked about the OP:

What connection does the server have?
What connection speed (download and upload speed) does your friend have?