[2021] Hosting games issues

What is your upload speed, @Glordium? You can use a website such as https://www.speedtest.net/.

Your upload speed is very low, at least 1Mbps would be required to host smoothly. Are your speeds limited by your set-up (are you using a mobile connection, etc.) or the region you live in (do you live in an area with poor reception)? I think you’re well within your rights to complain to your ISP otherwise.