I’m using contabo and the VPS I got is advertised as 1 Gigabit. When I do a speedtest or use iperf3
to connect to public servers I get pretty close to 1 Gigabit. But from my residential IP the speed drops down to 100-250 Mbit/s. My home internet connection can handle 500 Mbit just fine.
I’m looking for a new hoster with a better network connection. What real world speeds do you get with your server?
Maybe the issue is that your ISP has bad peering to some networks including the one where your VPS is?