I put my question clearer. My Tp Link is model Deco E4r hardware version V1 SN 22121P1A0119b The router is supplied by the company who delivers fiber with 300 Mbps on 2.5 ghz and the Deco E4R is...

my router delivers 300mb when I connect my pc directly with cable to the router. When I connect the AC1200 it not delivers more tnan 100 mb even when I am very close to the tp link unit

@IHugoVDB I resolved the problem uninstalling the Home app from google. Since I had a google mesh installed defore installing the ex 75 pro I supposed that this could interfere and suddenly appeared...

I fiound the app TP-Link Deco in Google Play but it is not installed on my Phone Samsung S23 Ultra. I could use it from google play to install my XE 75 pro succesfully but every time I want to do...