Though my docis 3.0 modem, I get 44-70 mbps. It slows to about 4-5 mbps,upload ok (10-11 mbps) when I put my EA6900 router back in. It has been working fine for months. I installed an Re2000 extender, but since taken it out, no difference. Win 7 pro 64bit, Comcast blast, Arris TM822. This has been driving me for a month or two.