@Kevin_Z 

Dear Kevin,

For me. all my mobile or Table can support wiFi 6.

I just want it to get full speed that ISp gave to me.

Thanks

@Kevin_Z 

Dear Kevin, I have bought TP-Link AX50 router.

after installation the router, Speedtest DL 820-860Mbps & UL 95-98Mbps. DL have improved but UL still the same.

I use my iPhone 11 & 12 WiFi Speedtest DL 350-400 Mbps & UL 93-98 Mbps.

I use my C3150 router as a bridge router. Speed test same as the main router AX50. WiFi DL & UL slightly lower than main router.

Thsnk you for your help.

@ONGTS3372 

That sounds weird. Can I have the speedtest result when you connect the computer to the dlink router? Or please connect the computer again to the ISP modem directly, then test the speed and show us the results.

Ensure all the settings on the AX50 are by default, ensure QoS is on Standard, or you are suggested to reset the AX50 to factory defaults, reconfigure it from scratch, then test the speed again, thanks.