unoblu You can also put the server for the test once to a Swisscom Server. I get in any case 2.5Gbit synchronously with the speed test. More is not possible for me. Or as a test you can also take the Oakla server.
In addition, I have read in the specification of your adapter that you should set the MTU value to 9000 for all devices.
Greetings
Daniele
