100 MB/s -> Router -> 50MB/s

[JeffreyCheng92]

Hi everyone,

My problem is that I am paying for a 100MB downspeed connection yet I am only getting 50mb/s on basically every speed test I run. The issue is not on the ISP (Astound - local provider in california bay area) end because if I hardwire my computer to the modem (motorola sb6121), I get speeds of 100mb/s. It is when I connect my computer via ethernet to the router that is connected to the modem that my speed hovers around 50mb/s.

Things I have tried and didnt work:

Tweaked with the router settings (MTU, channels 1,6,11, QoS, firmware upgrade, priority to my device, WMM)
Latest driver on network and wifi card
Multiple ethernet cords (all gave me 100mb/s while directly connected to modem)
Multiple computers (all laptops)
Multiple routers (Linksys E2700 and TP-LinkWR841N)

The technician who came said it was because my modem has only 4 bond channels but I dont see how this is relevant because I am still getting maximum speed while directly connected to the modem.

ANY HELP IS APPRECIATED! Thanks