@Kevin_Z
My desktop is connected directly to a Deco via ethernet. I have a server connected to a 100 Mbps switch and the other Deco is connected to that. Both the server and my desktop show 100 Mbps connections. If I attempted to transfer two files at the same time it halves the speed between the two files.I attached some pictures of the ethernet status and transfer speeds. I also tried transfering a file that is wired into the same switch as my server and was getting 110 Mbps transfer on the switch that the server, computer, and Deco are all connected to.
Thanks for the help.
Desktop Status:

Server Status:

Transfer from server to desktop:

Transfer multiple files from server to desktop:

Transfer file on the switch:
