Devolo Wi-Fi Repeater?

Have the devolo Wi-Fi repeater configured correctly, the LED lights up to max.

The WLan connection was made but there's no signal change on the laptop although I'm standing directly next to the repeater.

Then you are not connected to the repeater but still with the router via WLAN

Yes, I know that even after configuring the reporter with WPS and Web Browser everything is green but the signal quality has not gotten better.

I have an extra app for WLan signal strength.

And where is the problem now?

Disconnect the router and connect to the (stronger) repeater…

turn off the repeater, then you see that you are not connected with it if you continue to have a connection…