My 3 year old UBS 2.0 N300 runs at maximum line speed (50 Mbit) while this USB 3.0 AC600 does between 0.1 and 3 Mbit. I've reset everything network related and even removed the driver and network adapter from the system (including device manager) so I know it can't be anything other than Linux. Removed the Linux adapter and uninstalled the driver and installed the "old" after a reboot and even with no settings/settings changes it got 35Mbps on the speedtest (2 devices were streaming at this point).
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