How to limit wi-fi speed for all devices except some?

Question

Computer networks

There is a TP-Link 940n router. Now the maximum internet speed is 40 mb/s, I need to limit the speed for all devices to 30 but leave the maximum speed for some devices. Can this be done?

Answer 1

I won’t say, I haven’t seen SOHO for a long time, but there seemed to be an “IP QoS” section in the tlinks, although clients will have to distribute a static IP.
For good, take something from the MikroTik cAP category, everything plows beautifully there.
PS on QoS www.tp-linkru.com/faq-193.html , I don't know how it is fair to the specified router.

Answer 2

On native firmware, you can only configure traffic prioritization by QoS, but not the connection speed.
Flash openwrt/lede, install wshaper and luci-app-wshaper packages