@terziyski The QoS was switched off after you advised me it some time ago. How can I limit only to 5GHz-1 channel? How can I be connected only to 5GHz-1 with one device? Should I switch off the...

Hello @terziyski I run some test, changed the the channel width to 160MHz for 5GHz-2. The result is higher a bit but still not enough. Please see the pic below:

Model: Archer AX90 Firmware Version: 1.1.8 Build 20220321 rel.13967(4555) Hardware Version: Archer AX90 v1.0/v1.20 I have Comcast with my ISP --> 900 Mbit/s service (fibre channel) CLIENT Model: Dell...