EA6700 could not go more than 20Mbps even the modem speed is 30 Mbps.

Hello,

First thanks for your  help.  When connecting to my modem (wired connection) I got 30Mbps as expected but connecting to the EA6700 router (always with wired connection) it goes to the max speed of 20Mbps only,  The router was setup with category Mixed G and N. I have tried also with G only or N only, but still have the same result. Do I miss any parameter to get the router to go up to more than 20 Mbps? Thanks.

Ricky.