Hi, Just now i had my line upgraded to FTTH of 300Mbps and upload of 150Mbps.

My deco is in router mode with gigabit switch and cables, everything is connected in gigabit.

I have connection but in speed test it goes up to 90Mbps download and 100Mbps upload (which this is weird as my VDSL was 40 upload so why shows this upload)

I do not have any QoS, restarted router and Deco, my router is ZTE H1600

Ethernet cable is going to the DECO as i said (green ligh in switch meaning gigabit).

(i have asked before about the setup https://community.tp-link.com/en/home/forum/topic/741366)

If i connect my PC directly to the ZTE i gaet 312 download and 156upload which means FTTH works.

Why i have a problem with the deco inbetween?

please for your help on this it is critical for my work.

Thank you.