NI X-Net Bus Monitor - doesn't work

Hello,

I'd like to read the LIN comunication between two devices (Master & Slave). In order to do this, I'd like to use the X-Net Bus Monitor with my 9866 connected to my 9066. but I'm not able to read anythink (see pictures).

I develop a VI that is able to be the master and, in the same time, it could receive the answer from the slave. That VI works properly. For this reason, I cannot understand why the Monitor doesn't read the comunication.