We have a client that runs a server with 10-20 players online almost constantly. Exactly every 15 minutes they all notice a huge lagspike, lasting for about 30 seconds or so.
After much troubleshooting, this issue is apparently caused by the server logging way too much network information by default. Every 15 minutes the server log is spammed with 3000-5000 lines of information about how many bytes were used on which parts of the game
Solution
Disable network logging entirely. Paste the following to \ConanSandbox\Saved\Config\WindowsServer\Engine.ini
[Core.Log]
Network=False
I can’t wrap my head around why network logging needs to be enabled by default. It looks to be more relevant when debugging issues. Could it please be disabled by default?