Changing settings on the N600 to get better down speeds

My down speeds are terrible right now, average like 0.8mbps and its really frustrating. I read that disabling the QoS WMM support can fix that, but I can only disable it if the network mode is set to anything other than 802.11n and when its on 802.11g things get worse. What can I do to fix this? Any help is greatly appreciated!

Hi, check if you have the latest firmware available installed, you can also try pressing the reset button for 10 seconds.

Jack,

Only disable QoS, not QoS WMM. If go you under Advanced Settings, then Additional Features, then QoS. Disable it here.

See if that helps.

Okay I just disabled it and my down speed is at 70kb/s up speed is almost 400 kb/s