HI
i have a dir 850L
my isp is webpass, basically i have internet right from an ethernet cable, no modem
If i wire my computer i get almost their full speed guaranteed, 90-100MB
with the router DIR850L and wifi i get 10-20MB
im losing my mind, searching internet, modifing settings etc etc
I read online to try disable WMM but on this frea*king DLINK control panel the option is greyed out

What else ?
i changed channels, width, whatever....
HW A1 - FW 1.12
location USA