EVCS ns -> EasySolar GX 48/5000

Off-grid installation with EasySolar GX 48/5000 and MPPT 150/35
I’m connecting an EVCS NS and connecting it via Wi-Fi to the Venus GX in the EasySolar.
In the EVCS menu, I see a connection, but I get the error message “no network connection.”
I also see that the IP address and VRM ID are correct in the menu.
However, the EVS isn’t visible in the VRM monitoring.

Does anyone have any ideas?

What is your network setup?