Alpha firmware for MU-MIMO
Wi-Fi Alliance MU-MIMO certification standard is not final and MU-MIMO have compatibility issues between different chipset in this stage.
We will continually release new firmware to improve MU-MIMO performance.
If you want to get the alpha firmware for early stage testing, please send mail to firstname.lastname@example.org and use "RT-AC5300 MU-MIMO firmware" as mail title. https://www.asus.com/Networking/RT-AC5300/HelpDesk_Download/