Yes, broadcast-filter all is enabled.
There is nothing else running. I'm the only person on the network when testing. To test I am attempting to copy a large file over SMB. The entire wired network behind the wireless infrastructure is gigabit. Wired in I get full gig speeds doing the same file copy (nearly a full order of magnitude faster)
In different environments I've seen the same equipment send ~25 megs a second to a workstation, so I know it's possible to get faster speeds, I'm just not familiar enough with the configuration to enable that.
Iperf gives me the same results as copying a large file via SMB. The peak rate i've seen is 12.4 megs a second. It seems that I can double my transfer rate somehow, but I'm just not sure how.