Okay I seem to have fixed it for now.

• Stopped the server
• Set visibility public to false
• Started the server and stopped it again
• Set visibility back to true
• Restarted the server

The messages have not appeared again since then (it's been over an hour now).

Hi,
I have the following issue hosting my factorio server. The log gets spammed with the folloing messageblock:

46.084 code:28, 1c; Operation too slow. Less than 1 bytes/sec transferred the last 20 seconds
46.084 Info HttpSharedState.cpp:143: Downloading https://multiplayer.factorio.com/update ...