Setting up CDJ 900 Nexus with Serato DJ

I can definitely use some help if anyone can help me with setting up my CDJ 900 Nexus with an S9 mixer for use with Serato DJ.

From everything I've read, the CDJ 900 Nexus does not have an actual HID mode that can be selected but is HID compatible.  So far I've been able to get 1 CDJ to work but I can't get both to work.

Right now the only one that works is for deck #2.  I was able to get this working by going to utilities and pressing MIDI CHANNEL.  That gave me deck #2.  I didn't have to change the channel itself, it automatically connected.

I tried doing this on my other CDJ for deck #1 but I don't get a response.  I have both linked together through a network cable and the USB's are plugged into a powered hub.

If anyone can give me some suggestions for how to get both CDJ's to work with Serato DJ, I would be eternally grateful.  Thanks in advance!