FYI,
We have heard of potential throughput loss from customers using certain home/small office switches and routers.
The ones we confirmed are listed below:
Linksys BEFW11SW
Linksys WRT54G
Sonicwall TZ170
Cisco 806
Cisco 831
In one instance a throughput test showed 3-4Mbps less when going through these devices. After upgrading the firmware on the devices the user was able to see comparable results.
If you are using these devices please upgrade the firmware prior to contacting technical support.