I just added a XE75 Pro to my local mesh network, replacing on of the M5s I already had.

Before, I could see the network activity (upload speed/download speed) of wired as well as wireless devices. Now, however, all wired devices are showing zero activity. I have an Xbox updating a bunch of games, and the total network download is 1kbps. 

The XE75 is acting as a wireless router. The cable arrangement is like I had before with the M5, with the one major difference is that the entertainment devices (TV, Xboxes, etc.) are now going into a gigabit switch instead of a 10/100 hub. 

Is the switch interfering? I don't see how, but I also don't know why the XE75 would just be ignoring all wired traffic that the M5 could see. All of this traffic (i.e., the large game downloads) are going through the device, but it seems completely unaware of it.