Dolphin, the GameCube and Wii emulator - Forums

Okay, so the game still detects the USB dongle but still, the monitors do not connect. They light in and out seeking a connection to the dongle but nothing make them able to connect.
On the USB whitelist, I allowed the 21a4:ac40 - EA Active NFL

Boop! Sorry to up the post but I found the solution (even though it wasn't available on the forum) so it might help some.

It was coming from the game itself: go to the settings and rebind the peripherals where you will have to hold down the buttons on one peripheral after the other (heart then leg).

Thanks everyone! The problem is solved!