[AFMUG] missing part on Canopy SM

[Ken Hohhof via Af]

Anybody know what that little 6-leaded SMD is between the RJ45 jack and the 
Ethernet transformer on the PCB of a Canopy SM?  We bought a used SM that 
doesn't work (it lights up and seems to be trying) and that part is missing. 
I don't think it's optional.  But is its absence causing the problems?  Or 
just an indication that a tech didn't finish repairing it and mistakenly 
marked it as tested and good?

If it's a surge protection component, it seems too small to do much good.